Go to this website and watch some of these high speed vids of bows being shot with fingers release. Note especially the one titled "The First Phase of Flight." Watch what the arrows do. You'll see right off the bat that a whisker bisquit will seriously impair an arrow's flight off the bow for a fingers shooter. I know some guys shoot wb's with fingers. They might be able to get away with it but my opinion is wb's are not even close to being suitable fingers rests.

The other rests I mentioned are designed for fingers shooting and can be used perfectly well with a release if you want.

http://www.wernerbeiter.com/en/informations/videoclips/the_way_to_the_center.php

Here's Cavalier's website.

http://cavalier.safeshopper.com/