Jamie, have you bare shafted Yet? Those results you told me about with feathers on don't mean a thing.
Only two carbon arrows out there stiffer than the 7595's and that is the Full metal jacket dangerous game and the kinetics.
If building the shelf out ain't affecting anything, than you have something else going on there. I shot .200 spine kinetics out of that and they flew perfect with or without feathers, but I was also drawing that bow up to 3"s more than you are.
I guess I am anyway, I don't recall you telling me your draw length.
BigJim