sylvan, u didn't listen to my reply![:@]
on your post the guy with only 8 1/2 inches of penetration needs not to up his k.e. or his momentum. he needs to up his p.s.i= pounds square inch.
all he needs to do is sharpen his broadheads, or use a smaller diameter shaft, not a lighter shaft. or he could use a slimmer field tip, not lighter.
it is a fact that u can gain penetration without increasing the k.e. or momentum!
