I here ya on the dual cam model. I watched a big ole boy shooting a 70# dually and at full draw the bow was shaking like a leaf!!
I was shooting my old mathews last week to make sure it liked the new fletch I put on it' s arrows. I shot it a good 20 minutes at 67# and was satisfied with what I saw, so I pulled out the mighty mite for some shooting and at 65# (where I left it after increasing it for your speed comparison the other day) it felt like every bit of 70!!!
After about 10 shots I was shaking like a leaf[

]!! I think I need to adjust a little more letoff on the peg to give me a little better valley as right now I feel I have to hold it tight or the cams gonna come aroundm on me and my shoulder can' t do that again. It has just now fully recovered from my shoulder ripping experience

when I first got my bow in the spring.
In hindsight, with this cam and speed all I needed was a 60# model.
New limbs may be on the way in the future.