In my opinion, some of the greatest archers in the world will paper tune their bow, but then walk back tune; and often times, the walk-back tuning will place a tear ever-so-slightly to the upper left (I believe, don't quote me on that) so they are not quite shooting bullet holes. They will trust walk-back tuning far more than paper tuning...making sure from 20 yards to whatever distance all the arrows are perfectly in a straight line up and down.
I'm not sure the reason behind the slight tear...I'm guessing it might be torquing just a tad...
I just paper tuned my bow to where I liked it, but then did a walk back tuning and had to move my rest a tad...
I will say that just because one's in line, it doesn't make all the others perfect...
Just some thoughts!