You don't even have to put a shelf on a selfbow unless you just want one. I usually don't bother. But I really don't like feather cuts either and no matter what you do, you're eventually gonna get feather cuts if you shoot directly off your knuckle. So, I use theFerret's floppy arrarest on my self/board bows.
Mickey's got a lot of good stuff on his site:
http://groups.msn.com/ferretsarcherywebpage
Also, a selfbow/board bow won't usually shoot as fast, pound for pound, as a laminated glass/wood bow, so that'll bring down your point of impact closer to your point of sight.
Another option is to go 3-under and play around with how you anchor. The closer you get the arrow's nock under your eye, the closer your point-on distance will be. You can actually change anchors, and change between 3-under and split finger,to shoot point on at different distances.
Changing anchor locations isan old barebow system called 'face walking'. Changing the string grip is part of another system called 'string walking.' Both are illegal for traditional tournaments. String walking is not so good for hunting because it takes so much time to figure out where to locate your fingers for the draw and shot.Face walking is a pretty good system though.