Well I just checked some foc' s and it seems that the broadhead did change the balance point of about 1/8" .This was only a change of 15.8% to 15.4% foc.I was wrong with that.But this was also checking to the end of the shaft and not to the end of the point.This is where I agree with Easton.Foc affects spine mainly because of weight.Checking to the end of the point is fine and may be best,I really don' t know.It just keeps you to the safe side of spine instead of to the low side.The reason I don' t like to measure the point is simply that a point will not flex the same as the shaft.It does affect the way the shaft flexes but doesn' t flex the same.That is why I like staying to the stiff side,ever so slightly,just in case.I don' t think there is a right or wrong but just a different way of looking at the same thing.This is really getting down to the very smallest of details.[:-]