RE: Wrist sling for Traditional bows.......
I had the video, and remember that part, but never tried it. I had a problem with torque, but wrist slings aren't allowed at most tournaments. An easy fix (without the sling) is make yourself hold the bow gently, like an egg--that works for me. Another, that I've seen serious target archers use (including Olympic archers) is to simply fold all but your index finger beside the riser, not around it--you can't torque with that grip.
I can (or could at least--haven't even tried to pull it lately) shoot a bow that I pull over 100# on, that has a bit of shock, with a loose grip--just got to practice it.
Not knocking the sling, or anyone that uses it, but for me the fewer acessories the better off I am--one less thing to loose or have something go wrong. One of the main reasons I gave traditional a try to begin with.
Chad