The true testament to how well a bow will shoot is how well they balance and hold on target while aiming,or trying to aim.
I can only speak for one as yet, the Vectrix. That was actually the first thing I noticed when I shot it. It has a very solid back wall that holds incredibly easily. It is balanced very well, and it just seems to.....for lack of better words...."sit there," if you know what I mean.