Dont worry about paper tuning so much, walk back tuning will give you a much better idea of how the bow fits you and your form.
Walkback only works if the shooter has a sight level on the bow and is consistent enough to use the method and in most casses I have seen the general hunter is not consistent enough to use this method all bows should be able to achieve a bullet hole that does not mean the bow is perfectly tuned or set-up just because it bulletholes.Dont worry about paper tuning so much, walk back tuning will give you a much better idea of how the bow fits you and your form.