Well, I'll put in a plug for a home-made epoxy rest. It's cheap, fool proof, can achieve great arrow flight, arrow can't fall off/out easily and nothing to snag your line. I'll never use anything else, and oh yea, I have tried just about every commercial rest out there to this point and they are all sitting in a drawer waiting to be given away as door prizes. Click below for the how to:
http://www.bowfishingsociety.com/community/index.php?topic=1320.0