Sorry I did not explain wht I was thinking so well. At 20 yrds center of my groups were just on the edge of the 2 inch bullseye. At 30yrds it was about 2inches away from the edge. When i stepped back to 40 yrds the center of the group was about 4 inches from the edge. The grouping was consistant but as i stepped farther back that small difference at 20 yrds increased as i got farther back. If and when I am able to comfortably shoot good groups at 40 yrds i will sight in my 20 yrd and 40 yrd pin. Theoretically( spelled wrong) the pins between your 20 and what ever other pin you sight in should be more accurate. So if you are comfortable at 50 yrds and you sight in your 20 and 60 then your 40&50 pin should be more accurate rather than you sighting in your 20 and 30.