RE: How many use a single pin sight...
I use the Vital Bow Gear Pro Slide and I love it. It is the best sight I have had yet. It is very bright and light weight. I like the vertical pin. I use a single pin even if I don't have a slide. My bow shoots flat enough out to 30 yards I only need one pin. Iaim a little high or low to compensate. I don't like multiple pins, if you look at the wrong one you are way off.