I feel it's the best hunting rest out there. It will slow your arrow down but I think it's like 1to3fps, I doubt you will notice. I believe the older style (all black bristles) wore on vains and feathers but the new type (brown & black bristles) if set up correctly will have little to no effect on them.

I use one and can't find one thing to complain about the rest....but that's my subjective opinion.