Archery: Compound Bow, what are the pros and cons of a whiskerbiscuit rest? Will it slow my arrow?

archery
Keith asked:


I have recently purchased a new Hoyt. After shooting the bow for a few weeks, I’ve noticed some wear on my current rest (it seems my fletching is clipping the rest on my release). I tried grinding it down, but I still have no confidence in my shot. I’ve heard that a whiskerbiscuit would be worth my money, but I’d like some more information on them. Will is slow down my shot? Are they difficult to install? Thanks!