ORIGINAL: GMMAT
Jeff, you don't have to use the rope. You can attach it directly to the loop, which is one suggested meathod included in the release's instructions. That is how we were shooting it yesterday and how I would intend to shoot it if I purchased one.
Then I can tell you with 100% certainty that the release CAN slip off the string loop. it happened to me, twice. I lost total confidence in it......and sold it.
Perhaps they've made some advances in the design, but I don't think it will. When cocked, the release head completely closes around the loop, no gaps. The only way it can misfire is if someone touches the trigger while drawing.