bprepn, sorry I was unclear. A 60# single cam, converted to dual cams, would have a draw weight of 70#. I don't think the draw cycle of a dual cam is harsher than a single. I'd say duals are generally smoother. Don't rule out a dual cam bow. My P38 DC shoots like a dream. 57#, 29" draw, 365 gr arrow, around 290. My guess is the 80# limbs were actually 70# from the single cam setup, hence 80# with dual cams.
Phil.
"Could you guys be quiet, my dad's trying to shoot."<img src=icon_smile_shock.gif border=0 align=middle>