Thanks for all the great info. But I still have one question, if FF develops less hand shock& and is quieter why is it harder on the bow, and how much more stress is placed on the limb tips?Sorry I guess thats two questions. Also now that I think of it I have one more ?. I constructed my tip overlays with whitetail antler over brown glass,is the antler material strong enough to take the extra force applied to the tips?