ORIGINAL: bigbulls
The KE level isn't climbing like all of the graphs and charts that Sylvan posted say it should. While the Ke level is a tad higher, I suspect that if I were able to keep going up in arrowweight the KE numbers would begin steadily falling. Any one have a 3000, 4000grain arrow laying around? No two bows are going to be the same when it comes to this kind of thing.

I suspect that the 82nd has a"hump" in the efficiency of thebow.I am sure it has everything to do with the cam design. But it still proves the point of "not always". There are far too many variables in how a bow performs from one to the next.