I bought my Z7 a couple months ago, I wasn't used to the pull of a single cam right away but never thought it wasn't a smooth drawing bow. And as far as the hand shock, by far the least i've ever felt. Even from the first shot there was hardly ANY vibration, the bow just seemed to tilt forward with the release. Great bow so far, the only thing I've noticed is that after a while practicing I've had 3 monkey tails lose the tips