Jeff-

Alot of the tournament shooters wanted the 60% mods for a crisper release, so of course they made them. (high letoff mods allow more "slop" in the system) Seeing as it is the same cam, they are thus available on all of the bows. Speed increase is roughly 7-9 fps depending upon which cam, drawlength, and poundage. Good shooting, Pinwheel 12