WILL ADDING 5 AND THEN 10 GRAMS OF WEIGHT IN THE BUTTCAP ALTER THE SWING WEIGHT OF MY TENNIS RACKET?

[@Anton.Arkhipov]

If you want to add any amount of weight without changing the SW (as measured by the machine, not how you feel it), you should add it at 4” up the handle. Simply because it’s where the fulcrum goes through. But for practical reasons, we swing the racquet around different fulcrums (wrist, elbow, shoulder) in different shots and different phases of particular shot. So any significant mass addition will be perceived, even if it’s in the handle. Meanwhile, for stability/power purposes (how racquet interacts with the ball at impact) it’s only relevant what mass you add around the hoop. And where exactly.

[@unkertennis]

The racquet wasn’t fitted flushed to the end for the +10g butt cap. It was flushed for the +0g and +5g. That’s driving the swingweight difference

[@malagabee]

Yep I saw a gap at the end of the buttcap too. Only takes a little to increase it by 3 units. It’s like swinging a longer stick.

[@LinbeeNasuaki]

Saw IT too😮

[@geoffchriste1703]

Because swing weight is not actually measured at the end of the frame, but a couple inches up the handle to mimic where the center of your hand would be, adding extra wgt to the end of the frame has little practical effect on swing weight. However it has a big effect on the balance point, and players will feel this right away. Rule of thumb has always been .. if you are an Eastern FH grip linear swing path keep your balance point toward the head of the frame. If you are a Rafa-esque modern topspin player, you will get easier topspin by moving the balance point toward the handle of the frame and adding 10 grams of wgt to the butt cap is the easiest non permanent way to do this.

[@scottduncan9495]

Agree…math says the swingweight should have only changed by one point…0.01 kg acting at 4” (or 10.3 cm) from the swingweight pivot is 1.03 kg-cm2 The thickness of the weight block pushed all of the head weight of the racquet further away…distorting the measurement. Unless one is going to grab the end of the weight, the change in swingweight should be negligible

[@Letsgetstringing]

@@geoffchriste1703This makes no sense. Federer uses eastern grip and his stick is very head light as opposed to Nadal’s being much less head light due to most of added weight being placed under the headguard. It’s the opposite of what u stated.

[@PeterNordstrom-rd3if]

I use this racquet with the 10g buttcap, added weight to the V in the middle, and at the top. It adds so much stability and comfort. It's my favorite racquet to play with.

[@movdqa]

Silicone is the nicest as it also adds dampening. It's just a pain to work with.

[@andreiivashkevich1847]

Hey, do you know when new solinco xtd 28” will be available for general public to purchase?

[@harrysnateraar135]

All this measuring and numbers are depending on how loose you grip your racket. Theoretically you are 100 % loose and then: every gram you put in the buttcap will have influence on the swingweight. But for instance seniors who tend to grip their rackets rather tightly they will have to put additional weight BEYOND their hand i.e. 4 inches from the buttcap to have influence on the experienced swingweight

[@louismestas4355]

Of course it would but cap would add some swinging weight! Donnay originally did that long time ago

[@harrysnateraar135]

would you please give attention to the Snauwaert rackets. They like to do it great in Asia ...

[@chuckfriebe843]

The fact that there are several comments about how the commenters “ don’t understand how it affects the way the racquet plays”, tells me what kind of individuals watch this guy.

[@PrecisionPointTennis]

Cool. Thanks a lot! How much does a nickel weigh? Could I just put a nickel in there and add some cotton? I can’t buy anything else for the butt cap where I live. Thanks

[@louisr.995]

how does a change in balance impact your racket swing?

[@butopiatoo]

I find NO 28" length Solinco tennis racquet. WTH?

[@willcassidy2899]

If you added the 10g how much would you have to add to 3 and 9 to keep ballance point the same as original?

[@Maiqel]

10 g = 0.01 kg. 0.01 kg x (10 cm)^2 = 1 kg•cm2 == +1 RDC SW. There you have it. You measured it wrong.

[@bilipino76]

Why aren't there any more vids in the shop?

[@BOBBY-et9xb]

Either Brad Gilbert closed the shop or Harry got fired. 🤣

[@butopiatoo]

No clue what this means in terms of how the racquet would play

[@sbgtrev]

Yes I was expecting color too there. Seems like we're all supposed to be experts here

[@juju-rt8ek]

That machine doesn't measure true swing weight. The fulcrum isn't at the same place when you swing a racquet. It should actually drop swing weight by about 10 %

[@tijgertjekonijnwordopgegeten]

No it shouldn't, you can't lower swingweight by adding weight...

[@jerome_morrow]

Swingweight is kg*cm*cm (where cm is the distance from the pivot point). Per laws of physics, it is impossible to add mass anywhere to a racquet and reduce the swingweight. This is a common misconception that adding handle weight reduces swingweight. It reduces the balance point.

[@juju-rt8ek]

@jerome_morrow when you swing a racquet , the fulcrum is the shoulder or elbow. If you add weight to one side of a fulcrum, it will reduce the weight of the other side. Some heavier racquets are more manouvreable because the weight is in the handle. Balance has changed and swing weight seems less.

[@juju-rt8ek]

@jerome_morrow agree obviously the racquet mass overall increases. Pivot point is crucial. Pivot point on the machine is constant ...about 4 inches from the butt cap.

[@jerome_morrow]

Mathematically, adding 5g of mass to the butt end increases swingweight by 0.5. Adding 10g increases it by 1. You don’t need a machine to illustrate this, and all this video does is prove that the Dunlop machine (same with any other than a Briffidi SW1) lacks the required sensitivity to measure small swingweight changes.

[@toddhoyt4614]

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[@andrewchudow9418]

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