Like sprintflyer says, it's tough to loose or forget your fingers.
I am a proponent of the less complecated we make our set-up the less there is to go wrong. Fingers is at the minimum 2 things(release, loop, and possibily more things on the string) to break or otherwise go wrong. If you plan on shooting 3-D and are trying to be competetive then shoot a release but if only hunting then you can't go wrong using the KISS system and fingers.
My 2 cents
Greg
"Getting close to the game is the joy of Bowhunting for me, the harvest is a bonus."

Live 15 ft Python after eating a small Antelope!