Dual Main 9.5mm lower, raise, lower with hot transitions

[@josiahfaamasino5961]

My God. He's the Jason borne of rope access.

[@TheRopeAccessChannel]

Nice and clean demo again! I've used a similar setup, but with a handjammer and Rock Ex omni block, often for those improvised raises on the job when no one thought to bring something like a Pro Traxxion.. Thank you for sharing🙏🏼

[@aerialrescuesolutions3277]

This is an awesome and simple demonstration of a system. Lovely content once again. Thank you Richard.

[@colinwalker1626]

Yet another gem! Thank you Richard

[@kevinsimard]

I have never met you but I have learned a great deal from your videos. I will definitely use this and share with colleagues. Great content.

[@33samogo]

The security of the system decrease with the number of gear in the system, also the price of the system increase with the number of gear in the system. In your case the system cost more than 1000 euro without two ropes and slings! the question is do we need two rope system because is more safe or because is more efficient? Do you consider backup belay line to in this two rope operations? Thank you, great demonstration.

[@Sapnopuri]

Hello my dear friend, how are you?so beautiful sharing, I'm interested your video, I really injoy this video, have a nice day my dear friend

[@stevereid7773]

Richard, how do you decide whether or not to put shock absorbers behind the Pro Traxions? I struggle with when they’re required.

[@dookshi]

I've always wondered about a slip knot as a backup in self-rescue situations while climbing but this is the first time I've actually seen it being demonstrated. It seemed just perfect but one thing was always bugging me. All is well until someone else joins to help or take over completely. They might confuse it for a "real" knot and inadvertently misuse it. Any considerations of this? For the same reason I avoid anything non-obviously non-standard on my harness while climbing because if something happens to me and complete strangers engage in rescue, my gear better be of use to them without nasty surprises.

[@jennywhite1425]

Hi Richard, the the reason you're adding the ProTraxions to gain efficiency of the pulleys over the cams in the Rigs?

[@RopeLab]

Marko, this is fairly standard with devices like this in rope access and rescue. It is even in some of the Petzl tech tips and instructions. If rope slips through the device, this can still be undone - a regular knot would not.

[@RopeLab]

Jenny, yes. Rigs are about 30% efficient as pulleys - this turns a 3:1 into less than 2:1. ProTraxions are more like 90% - so the result is pretty close to 3:1.

[@dookshi]

@@RopeLab thanks for the reassurance in its acceptance. The slippage is exactly the reason why I like it. With the other one being easy to tie and untie one-handed when lead soloing.

[@sensorpixel]

@@RopeLab Could you go into a bit of detail as to why the slip knot is recommended? Petzl has the results of some measurements they performed on their website: Slippage for the RIG occured at forces ~ 4-8 kN, depending on static vs dynamic load and the rope used. I've always thought that this slippage is actually beneficial, as it may help prevent anchor failure.

[@scottzettelmeyer9313]

Rich what's your view on toothed rope grabs vs friction hitch rope grabs in rescue systems?

[@RopeLab]

Scott, every situation/response will determine different system requirements. This is just one option (that I often use). Of course friction hitches are another.