i second the wisker bicuit, mine shot great for 20 shots then started throwing an arrow here and there. drove me absolutley nuts. try an ultra rest, my buddy has one on a Gaurdian and I like it. it will be my next purchase. right now I know the first shot with my W/B will be where I want it, which is what counts, after that who knows. plus you are loosing alot of speed through it. prolly gain 5-10fps with a drop away.