Well...IMO, paper tuning may end up being final tuned, may only be a good starting point. Whether crutch or legit, I have ditched the paper all together the last couple years and eyeballed everything level (actually a hair nock high) and centershot, sighted in for 25 and 35 yards, then bh tuned. I can tell you thata shot with a bh and lighted nock at dusk really shows off how good your flight is or is not! I am going out right now to put the finishing touches on a new bow I got last week...I'll let you know how it goes. I am thinking it will be 5 shots or less for bh's to be fp's at 30 yards...but we'll find out.