RE: peak weight vs. lowering poundage
When I ordered my Reflex Highlander, I got it with 70# limbs. But when I got setup in the bow shop, the guy "tested" me with different poundages. I drew 65# without a problem. When he crankedthe limbs back up, the bow scale read roughly 72#. He noticed me straining a bit with 72#, but I drew it back okay. So he turned the limb bolts back out a turn or a turn and a half.So then the bow scale read 67#. I drew that back and didn't strain like I did before. It is comfortable to draw and probably not at peak efficiency, but my new bow will really serve me well.
I believe the proper efficiency and IBO rating was with 70# limbs and 30" draw and a bare shaft carbon arrow. The IBO rating of the Reflex Highlander (old Grizzly) is 305 fps.
Since I now draw 67# with a 29" length, I'll probably be shooting 275-280 fps.