Tweaking the top axle, changing the cam lean amount,
is a TINY adjustment,
to avoid the HARD work of CHANGING the draw length (twisting the bowstring).
Most folks really hate to admit that their draw length is TOO LONG.
this is why I limit the tweaking of the top axle to 2 twists extra (one side)
and removing 2 twists (other side).
If your cam lean is pretty good,
just SKIP this step,
and go STRAIGHT to dialing in the bowstring twists.