belay question

[bencsu47]

i have just started using prussik backups below my rappel device but i am having trouble getting the prussik unweighted enough to again start the descent once i stop. is there a technique that i am not doing which will get that knot unweighted without having to do pull ups on the rope?

[dccampen]

If you want to use an autoblock then you should use a French Wrap instead of a Prusik:
http://www.cavediggers.com/wrap.pdf

http://www.rockclimbing.com/articles/index.php?id=53

[bencsu47]

thanks for those websites. those were by far the best illustrations i have seen. that helps a lot. thanks again