Archery strings! Which is better? - Testing D97 vs. Fast Flight and BCY_X - Traditional Archery

[@peterjuulsgaard]

The BCY_X have 18 strands to compensate for the thickness, cause the material is thinner than the D97 material. Bow is 49,7 pounds at 28 inches and the arrow used for the speed testing is 506 grains. So about 10 GPP! The arrows I´m shooting is my hunting arrows, which weighs 580 grains. Thanks for watching.

[@knolltop314]

No real world difference. Nice testing rig! Thanks for doing this.

[@peterjuulsgaard]

You are welcome

[@WaynesGoneWild]

It is great to see these types of comparisons videos, they help in understanding the actual working dynamics of the strings (in this case). Despite what you may feel you have been quite scientific in your approach to the testing. Great job, great video Peter! 🙂

[@peterjuulsgaard]

Thanks!

[@MyFdM25]

Fantastic video!! I think is very interesting for all the trad bowhunters to know different materials for our strings and what can you get of every one.

[@mrnice752]

BCY-X is a blend of dyneema and vectran. The vectran is added to compound strings to prevent any creep but is pretty much useless for recurve/longbows and most manufacturers don't like it as it puts unnecessary stress on the limbs.

[@peterjuulsgaard]

Thanks for the info

[@labtrainer09]

Hi, Peter. Thanks VERY much for this test! (Somehow I missed it when you first posted the video.) I think the results are both surprising and interesting. They made me glad that I chose a 14-strand D97 string for my 45-lb. take-down recurve! All the best, Chris (in Maine, USA)

[@peterjuulsgaard]

Your welcome

[@tomszájer]

I used BCY-X , 652 , 8125 and Force-10 materials. There is no significant difference in their performance. BCY-X is a stable material, but it stresses the hooking point of the string, which may break it. However, the arrow bounces off it faster, which can improve accuracy. 652 the original FastFligt. Stable, quiet, gentle and really fast. Perfect for all bows where the string attachment point is not wood or horn. Force 10 is a better material version of Dynaflight 97. It was probably the quietest and most stable. The shooting sensation is clear, the aftershock lasts a short time. 8125 is a common material among recurve archers. It's a little harder and noisier than the 652, but the performance is the same. I use a small nock and a 0.018" serving. For the same diameter (2.45mm) you need the following quantity. BCY-X : 20 thread , 652 and 8125: 16 , Force10 and D97 :14.

[@bradlauber9097]

I was the one that asked you to try d97. I like this material as a more inexpensive bowstring material with great performance .. I did also hear bcy x with Vectrin adds stress on Trad bows.. I shot a couple of whitetail deer with d97 and found the strings quiet. The deer never knew what hit them.. Both deer fell over not anymore than 50 yards!!!!

[@peterjuulsgaard]

I’m letting the D97 stay on the bow now and use the FF as a spare

[@rafaljarosz7094]

Thank you, another very educational video. I getting much better scores during competitions by using some techniques and tips which I learned from your videos. Many thanks for this.

[@peterjuulsgaard]

Your welcome

[@twintwo1429]

I really enjoy your videoes, well done, and well explained. THANKS.

[@peterjuulsgaard]

Your welcome

[@michaellane4003]

Another very interesting video. I'm new to Trad and after shooting my new bow last week, I realized that it's going to take a lot more practice before I can use it for deer hunting. So I've decided to move that goal to next year. I'll have to stick with my compound bow until then. I really appreciate your videos and I learn a lot from them. Thank you sir!😊

[@peterjuulsgaard]

Yeah no rush! Better to wait if you´r not feeling sure with it. Thanks for watching

[@BrotherWind]

Wonderful Peter. Great test. Now for a decibel test with each string from the hooter shooter!

[@peterjuulsgaard]

I’m thinking about it, but on the other hand, I think the hooter Shooter is making too much noise on its own. So I would probably not be worth the effort

[@guillaumefraser3813]

Very informative! I'd be curious to see the results with a thinner BCY X string, such as a 14 or 16 strands! I'm also curious as to the effect of furballs or other string silencing devices would have. My guess would be that heavier ones, such as "spider legs" would silence it more but also slow the string more than lighter ones, such as fur or yarn, until surface area becomes too much.

[@Kurtdog63]

I think stiffer strings can be harder on bow limbs and possibly a little louder sound. Also older bows not rated for fast flight strings. 10 fps is not a huge difference. Shot groups are over-rated and destructive to arrows, ha. I get 154 fps with Dacron out of a 45 lbs Bear Super Kodiak and 500 gr arrow. I just posted a video this week testing light recurve, longbow, and compound speeds. 25 to 45 lbs. Chronographs are fun to play with. I like your bow shooting machine.

[@glennbayley5863]

Thank you Peter for a brilliant video clear and precise as normal. Happy New year to you and your family 🥳 good hunting for this year.

[@peterjuulsgaard]

Thank you! Happy newyear to you as well

[@richmerlo2769]

Peter that was a great video ! I shoot a D97 flemish twist string , and always wanted to know how it compared to these other strings. My longbow was custom built for me by Steve Turay of the Northern Mist Longbows , I shoot an ASL Whisper 48# @ 31" it's a very smooth shooting bow , very forgiving. Thank you very much for doing this test it was very informative !! I will definitely keep on using these D97strings. Good Hunting to you this season !

[@peterjuulsgaard]

Your welcome! And keep that string. Good hunting to you

[@robertross3358]

So nice of Pedro to make up those strings for you ! Impressive setup to yield such consistent results . Good Luck in Spain , hope you have a Great time !

[@peterjuulsgaard]

Thanks! We had a Great time. But I didn’t get a stag this time

[@archersanonymous3003]

Thanks for this Peter, I never knew what the differences were between fastflight and D97 (and BCY-X). Not much! I compared a dacron and fastflight string in a chrono a few years ago just shooting, and I think the dacron string was giving about 8-10fps slower (45lb bow, and 440grain arrows), so your results confirm what I found.

[@peterjuulsgaard]

Great to know! Yes there are not much difference in the modern materials, it seems

[@fahlvfaust677]

D97 dyneema,, 652 spectra..both are good, but i prefer 652 ff spectra..if they saying any dyneema material like 8125, dyna are low creep, spectra also low creep, the strands more thin than dyneema, spectra a bit soft characteristic, lower vibration, more forgiving..

[@jharchery4117]

Excellent as always.

[@glennbayley5863]

keep the good work up your videos are fantastic. Brilliant videos. Thanks.

[@peterjuulsgaard]

Thanks, your welcome

[@LukeMcMullin]

Thank you for your efforts you saved me a great deal of money. Luke.

[@peterjuulsgaard]

Your welcome

[@filipbertilsson2240]

Hi Peter! Thanks for nice video. One year ago I bought cheap Chinese bowstring material just to learn myself to do flemish bowstring. I made one with 12 strand to my 50# recurve. I tuned and cut my arrows to the bow. (400 spine, 100gr insert and 125 field points.) Everything was fine until i recently bought new bowstring material. Dynagen which is European made Dynaflight. I made 16 strand string just to make the bow little quiter. I was SO disappointed! Bow was quiter but SO slower! Arrows became to be too stiff. I cut 2 strand from the string (14 strand now) and it's little better but still too stiff arrows. I put 150 istället 125 in front but still too stiff. I don't have 200 grain or heavier points to see how much I have to put in the front just to kompensate the speed of the string. My point is that it seems that number of strands is even more important than the material (maybe) or the cheep Chinese material (3 spool for 100 SEK. which is like 30 dollars) was pretty good. What is your thoughts about it? Hälsningar från Sverige!

[@peterjuulsgaard]

I dont think China stuff is always bad. I dont know the european string you are mentioning. It almost sounds like Dacron. I never made my own strings and the speed numbers I get in this video would be difficult to beat with any other string On my bow I believe. I mean 3 different types so close to each other, right? Strands should not make much of a difference with the same material. Some folks have already tested that. So I honestly think that your european string is poor. Wish you the best, Thanks for watching

[@filipbertilsson2240]

@@peterjuulsgaard Thank you for fast answer! Strange thing is that the European material is supposed to be good. It is made from the Dyneema SK 75 exactly as D 97. The same thing happened to me but opposite way. I changed original 16 strand (fet one) Dynaflight for 12 strand from the European stuff, just becouse i like to make a strings and I didn't think that I need 16 strand on 37# bow and the bow with 12 strand become to be so fast that my arrows become to be so week that I couldn't use them. Well, that is my experience. I'm sending the side with the European made string material if you want to check it! factory.flexarchery.com/compoundFullcustom.aspx Thank you and all best! Filip

[@johnryce4335]

Extremely useful info and nicely done.

[@peterjuulsgaard]

Glad you could use it

[@jacobstokes8683]

Good job you are a solid Bowman

[@williameddy7217]

Thanks for the Video Can't wait for your hunting season to start!! Love your hunting videos!!

[@peterjuulsgaard]

Thanks, cant wait my self

[@williameddy7217]

@@peterjuulsgaard LoL ... I bet

[@shaneewell7404]

Great information. Thank you. I had my eye on the bow you were shooting in the video. Who makes it? Thanks again. Shane

[@peterjuulsgaard]

The riser is a Dryad Epic 17, and the limbs are Bosen LCS carbon foam

[@richardbauer2045]

Really good video!

[@peterjuulsgaard]

Thank you

[@lonnieknapp4311]

Very accurate testing

[@peterxyz3541]

Thanks 👍🏼👍🏼👍🏼👍🏼👍🏼

[@slingshotwarrrior8105]

Awesome archery bro!

[@peterjuulsgaard]

Thanks man

[@1978zsu]

Good stuff Peter!I do always enjoy watching your videos,very well made and straight forward info plus good chilling music in backround never hurts a thing!-i just would like to (share)say that I ve tried diff strings and have settled down on BCY strings(8-10 strands)from SBD .you might would like to check them out.-if you re concern about nock fit here s a little trick how to adjust them;due to the small diameter just do some wraps on actual serving where the arrow is going to sit with an unwaxed dental floss.once you get the diameter to your desired arrow nock groove thickness just run a superglue over it.then you do your nock points and voala it's all good to go&it lasts forever..of course you can still have them build to your desired diameter for that perfect nock fit.-now to use 8-10 strands instead of 18 would give you a complete different(animal) results.i guess more energy to the arrow and even less after shot vibration would be an understatement.i thought you might find it interesting ,and worth to explore perhaps.so I thought I would share ..anywayYou have a nice day ,all the best, regards Gab

[@peterjuulsgaard]

Thanks! I sure will explore string types in the future

[@Guidl_Stringwistler]

It would be interesting to see what weight the 3 strings have on the scales. Because the 18 String X-yarn will be a bit thicker than the 14 Strand FF+ and D97... or? 😌

[@arnorlarsen]

great content makker!!

[@peterjuulsgaard]

Takker

[@UncleDanBand64]

Very consistent. 2 or 3 fps is not much. Now 10 fps is a good gain from Dacron unless you are trying to get a closer point on. I am shooting super heavy arrows and Dacron. It seems to be working.

[@peterjuulsgaard]

I dont think speed is a big factor in traditional Archery. I think knowing the gear is much bigger, next after keeping our stuff together in the upper apartment, when the deer comes in. Thanks for watching

[@TradArcherDownunder]

Thanks for another great presentation Peter, very helpful as I am shooting only 40# recurve bow and if I can get another 5-10fps with my 460grn hunting arrows that will take them up to around 170fps. "Fire in the hole" I like it. Peace and happiness 🙏

[@peterjuulsgaard]

Your welcome! Even though there wasen’t much difference with today’s strings. If we consider the number of strands, the BCY_X is the marginal winner

[@Chassealarc]

Awesome test.

[@edcook6146]

Great job , thanks

[@ericmiller1100]

Thanks for the video peter! I switched from a fast flight to a b-55 string a couple a months ago because I think it it quieter. The difference in speed didn't seem to be much but I don't have a chronograph. Maybe I should thin about switching back I'm not sure. Another thing I noticed is with the same form and same brace height the b-55 seems to have far more string slap on my arm Have you noticed that? I wonder if it because it is a softer string?

[@peterjuulsgaard]

If the B55 shoots fine stay with it! But if you have issues you can change. Speed is not everything. The B55 will vibrate more at the end, and can possible slap your arm.

[@larryreese6146]

Good information, Peter. But it doesn't matter with any of the strings. If the animal is alerted he's still going to be able to dodge quick enough to dodge the arrow.

[@peterjuulsgaard]

Yes sir! No fix of that here. This Only shows that there probably Only is a marginal differens in the modern string materials

[@larryreese6146]

@@peterjuulsgaard that's the truth Peter, and I hope you and yours are doing well. Maybe you'll get your biggest deer yet very soon. We will keep our fingers crossed and tell the wind not to play tricks on us.

[@muadzabdurrahman7236]

Thanks, explained well

[@peterjuulsgaard]

Your welcome

[@julianandyvonne]

Excellent testing 👍 Which is your favourite string to use considering noise and feel?

[@peterjuulsgaard]

D97, thanks for watching

[@craighammond6645]

Perhaps have the chronograph further away from the bow, reason being, the arrows will be flexing a lot so close to leaving the shelf, reading the speed a few metres out the arrow speed might show a difference once the arrows have overcome all the flexing after the archers paradigm, just an idea, I would expect the fast flite string to perform better than the other 2?

[@peterjuulsgaard]

The cronograph is almost two meters from the bow. I’ve been shooting tru cronos for years, and I’ve never seen any difference with 3 or 4 meters. I’ve seen error i arrow runs sideways tru, though. My point on is the same with all the strings, and if there was a significant difrence, the point on wouldent be, right?

[@craighammond6645]

@@peterjuulsgaard I have no idea, but I just watched a clip from another archer that demonstrated arrows hitting a target at close range and they stick out from the target at random angles and penetration was minimal compared to arrows hitting target at say 15 yards and they penetrate deeper and the arrows stick straight out like they do when correctly tuned, but I guess velocity only drops the further from the bow and maximum velocity is immediately as the arrow leaves the string, it was just a random thought I had, sorry I don’t mean to confuse this issue lol

[@peterjuulsgaard]

There is no doubt that the arrow launch is a factor. Especially when shot by a person. But with a “machine” 3 times in a row, with 3 different strings.

[@Guidl_Stringwistler]

Hi Peter. Is the Fast Flight + from Brownell or is it the BCY 652 Spectra... That is also similar to Fast Flight?

[@peterjuulsgaard]

The thing is that I really dont know. I buy from stores and it Only says fast flight, or B50 or B55 and I’m actually not that nerdy about it

[@bartoszbachor8332]

What is this bow Peter?? I am looking for this kind of bow or ilf longbow limbs for my 15" oldmountain riser. Ps very good video.

[@peterjuulsgaard]

The limbs are Bosen LCS. Thanks for watching

[@sjohn_8627]

What brand of feathers are on those arrows?

[@peterjuulsgaard]

Dont know the brand, sorry

[@manuelgonzalezzambrano1989]

I hunt with 45 pounds and shoot with endless or linear D-97 strings, I get a little more speed with the arrow than with flamenco strings. What is your opinion of endless strings? Thanks.

[@peterjuulsgaard]

I coulden’t tell, I have Only used flemish strings

[@ThirdLawPair]

Did you notice any difference in the noise of the strings?

[@peterjuulsgaard]

Not really. Maybe the D97 was a little more silent. But only maybe

[@seanjorgenson8064]

I didn't notice a brace height that's important.

[@peterjuulsgaard]

All 3 strings are set at 7”

[@Bogie770]

this are the MH limbs that you transform in ilf ?

[@peterjuulsgaard]

No these are the Bosen LCS

[@MD-zp6gh]

great one... I think the bcy-x was the quietest, but I could be wrong. I do like a quiet bow. So it matters to me. thumbs up tho.

[@peterjuulsgaard]

I actually hear the same thing when I watch the video

[@jasonhooley4115]

@@peterjuulsgaard I thought the same when I watched it!

[@peterjuulsgaard]

I’ve been shooting afterwards and I cant really hear any difference when I shoot though

[@jacobwilliams5271]

Yeah most of the fast flight stuff shoots about the same speed. Who in the F uses dacron anymore?

[@peterjuulsgaard]

I’m using a Dacron on my Bear Grizzly and on some of my selfbows

[@earlfultz8603]

Great video

[@curleex3838]

I just shoot my bow, i dont bother worrying about all this maths and this n that, all bows shoot different so just pick it and shoot it and forget all this messy stuff, i dont think our ancestors were this bothered

[@peterjuulsgaard]

I’m not the bothered one