I never paper tune. When I set a bow up I bare shaft at 20 yards and adjust until both fletch and bare shafts group together. If you have an arrow scale, wrap tape on the rear of the bare shaft until the grains equal your fletched arrow. Of course the tape method will only work on fall away rests. It usually takes me about 20-30 minutes to tune my bows. I used this method last year and 2 days later took a state title with it and got my elk and turkey. IMO group tuning in this manner is the best way to get pinpoint accuracy. I have known guys to take weeks to get a bow tuned. As the year progresses I will check the tune of my bow by shooting bare shafts with my fletched arrows to see if I may have experienced any string stretch. It is a quick easy check that can be done anywhere anytime.