No, the bow's not clamped, just sitting there, but yes, the handle should be square with the line on the wall. When I use it the way I described, the handle is supported near the ends but just resting on the tree.
With it held this way and drawn from where the archer will pull the string, once the limbs are balanced so that the hook perfectly follows the line, it's balanced well for most bow hand holds.
This setup works until you get tillered out to about how many inches?
the top end of the line on the wall is offset from the handle center to your estimated bow hand pressurepoint? and the bottom of the line is directly over the pulley?
It just doesn't reveal where the dynamic balance point is under the hand. So I have an insert to place in the tree cradle that acts as a single pivot point, allowing the bow to pivot freely, and this pivot is able to be moved anywhere within the handle to find exactly where it balances as it's drawn, and limb strength adjustments can be made to fine tune balance and the balance point location.
When fine tuning the balance, the single pivot is placed at the best estimate of the bow hand pressure point? and the bow is free to rock. I take it that you would not expect to see the hook deviate from a line drawn from that pivot point to the center of the pulley, so you must be looking for the limbs tipping as you draw?
Please excuse the detailed questions. I am not being picky, I just want to understand your method better. I must confess that I have read your past explanations without really truly grasping your method, and as I am not the sharpest tack in the box, I appreciate this detailed explanation (and many of the explanations you have made in the past.)