Hmmmm? My second thought was that you may be shooting arrows that are slightly overspined or that it is a nock height issue (perhaps a smidge too low).
I typically have to shoot an arrow that leans toward being slightly stiff to get good bare shaft performance. When I fletch 'em with my 5.5" nanner maxis, this has the further effect of making my arrows even a bit more stiff. All this can contribute to feather wear.
Try this. After your first hundred or so shots, just lose the arrow like I do. In this manner, you won't notice the wear on your feathers. Or try raising your nock height by maybe 1/16" or even an 1/8".
Just a simple suggestion that may correct the issue. If you want to put more time into this, try putting some lipstick on the cock feather to determine specifically where it is hitting your riser or shelf. It may be something as simple as adjusting the configuaration of your shelf rest and riser material.
If you're bringing this up just to create an excuse for missing a rabbit on the bunny stomp, we're not buying it!