Okie Dokie, I can see where this may lead. Still won't be scientific but perhaps I will lower my poundage down to 60 to match his draw weight, and then shoot my heavier arrows and then shoot his lighter(cringe) arrows just to see what my own evaluations come out to. I am still betting on my arrows to penetrate farther, and thats at 20 yards on out farther.

Better yet, gonna let him shoot his and mine instead..........I am not too keen on shooting 5 grain per pound arrows with any hunting bow of mine.

You are right Greg......those math guys make my head hurt too.[:-]