I saw a guy shooting a one pin adjustable sight. You guess the yardage and move the sight accordingly. How do those work? Are the yardage grooves spaced evenly IE 20-90 yards are .5 mm apart, or are 20-30 .5 mm, 31-41 1 mm, 42-52 1.5 mm, etc? Wouldn't the arrow eventually lose enough speed at 90 yards causing the sight to be inaccurate? Please explain this to me, and DON'T say anything good about them, I want to keep my wallet in my pocket!
