Greg, the prongs do hit the shelf and they do "click". The click probably seems louder to me than it actually is, but like most hunters we want as little to no noise as possible. I could move the rest back a bit and perhaps just barely miss hitting the shelf, but I prefer the contact point of the arrow upon the rest at full draw to be as directly over my hand contacting the grip as possible. Perhaps I am wrong but since I believe my form to not be the best I think it helps me.

Anyway, I solved any "click" from the prongs contacting the rest upon impact by applying a thin adhesive backed piece of soft black foam. This piece of foam is 3/32" thick and seems to work for perfect dampening. I actually got the foam at work from scrap material. One thing for sure, there are absolutely no clearance problems, although I will shoot some Blazer fletched shafts perhaps Sunday if the weather cooperates. I really like the easy spring tension adjusting ability of this rest and I truly believe there cannot or will not be any bounce as some have discussed happens with other rests. One thing I forgot to mention here or in my review.....I believe its going to be possible to shoot an arrow with cockvane down if I desire, which most dropaway rest shooters and many rest manufacturers don't recommend.