Bare shaft tuning is THE MOST precise method available at this time IF you know what you're doing. I'm not very interested in how my arrow is passing through paper at 5, 10 or even 20 feet. I'm interested in an arrow that flies perfectly when released and impacts the target with the knock and broadhead on the same course. How many people have shot a perfect hole in paper than try a broadhead and find it impacts high right. Paper tuning is a very good tool for center shot. After that you can use the paper elseware. As for turning the bow back one turn, try it before you bad mouth it. It's good enough for the Olympic Training Center I'm sure it should be a decent tool for those that think paper tuning is the cats a--.[:-]