What is the term for when you shoot then back up and shoot again etc. to get the vertical shot aligned. I can't remember it.

its walk back tuning, but its for left and right adjusting your arrow rest to find your center shot, not for vertical.

It's for both.

Shoot at a verticle line to set your rest left or right to eleminate fishtailing.

Shoot at a horrizontal line to set your nocking point up or down to eleminate porpoising.

yeah, but you don't walk back when doing the vertical adjustments.