My bow is 64", 55# @ 28", Aluminum handle with snake skins on the limbs. 7 1/4" from the throat of the grip seems to be the best BH for the bow. The bow also like a high nocking point for me. Anyone who gets one of these, try the bow with a heavy arrow. Adjust the side plate thickness and the nock set until the bow is hitting where you are a lookin. I have not changed my form at all. Bow grip, deep hook on the string, swing draw, just like I shoot the Hill. I would say the bow is equivelant to a hill style longbow that is 5 to 10 pounds heavier in performance with the approx same arrow weight. I have no scientific testing data to back that, but I can see how much more penetration I am getting into the same sand bank with the same weight arrow shot from my Hill bow that is 5 pounds heavier. The ACS simply shoots the arrow deeper into the sand and hits with some authority. I am only shooting about 52 pounds.