Im shooting zero effects on all but one of my hoyts. I have it on a Power tec and a Razor tec. I also shot with quivers on my bows with no clearence problems at all. Very quite rests. Once you put mole skin on them you can not hear them at all .. I have drawn on three deer this year, and not one has heard me. This year I shot one deer at 20 yards, another at 15 yards, and another at 35. Never once did a deer hear me draw. Same as last year, never heard me with a muzzy. They are great, I will never switch to anything else.