** I"ve said this probably 100's of times on this site at this point. Guys who have never rappelled, please go learn from someone at a local rock gym, or a certified AMGA instructor. A very slight mistake can kill you. and simple things like a sleeve, drawsting, or even hair getting stuck in your belay device off the ground can quickly put you in a serious situation if you don't know how to deal with it. Also guys, if you are "self taught" on these type of technical skills, please try to abstain from giving advice or instruction on this kind of stuff. There are many many many right ways to do this, many many many devices to do it with that have different friction levels and multiple uses, but one wrong setup or mistake, and you're dead or seriously injured. **