If I understand this correctly, in order to group tune I would shoot a group of arrows at 20 yards then shoot a group at a further distance, say 40 yards. If my arrows at 40 are hitting left of my 20 yard arrows, then I should move my rest to the right and shoot another group until they both group together. Am I right? But, my problem is, why would I move my rest if I just got done paper tuning it and I am shooting a perfect bullet hole? Wouldn't this mess with my paper tune? I have always moved my sight to follow my arrows when sighting in a bow and after I paper tuned. Not move my rest to match my pins. You have to move the sight a good distance to affect a 20 yard shot, but move it only a little bit for a 40 yard shoot. So if I move my sight to the left to match the 40 yard shot, my 20 yard shots don't change. And after a couple GOOD shots both my short and longer distance shots are hitting the same spot. Am I wrong here? What am I missing? Thanks for the replies.