Queston? you have 2 lens in your scope housing?
Take a scope that has 2 Len's rings.
Now front len's with power has a aiming dot.
Rear Len's is plain with no power. But has a 1/2 inch dia. circle.
Now you attach this scope to a vertical sight bar,that is attached to the side of a sight bar.
While off the bow.Hold it out in front of you. As if you were aiming. Now you will notice, the dot begins to move or float with end the circle.
Now think of your bow hand on a bow grip .While holding this sight out in front of you, while aiming. Now move the sight, till the dot is in the center of the circle. Now induce tork into your bow hand.And watch the dot in the circle.travel off center.
So to the conclusion. While you have the dot in the center of the circle.There is no tork pressure on the bow grip hand.
Now to my ?.
Why is it. When mounted to a right handed bow. That this dot in the center of the circle. Moves to one side at 3 o-clock.And can't be brought back to center,by bow hand movement inducing tork.