As far as the pre-printed yardage tapes.......A set comes with the HHA sight. If you do it exactly the way they describe, it works perfectly. You have a tape that you will install that just has hash marks and numbers on it. They mean nothing, they are just numbers. Sight your bow DEAD ON at 20 yards, and record the number the marker is on. Then, sight in DEAD ON at 60 yards, and record that number. Lock your pin down. Subtract the 2 numbers, and that is the number tape you use. If you've done that correctly, line your 60 yard mark on the tape with the marker on the sight, and tape it down. You will be dead on at 20-60 yards.