Billy Goat
WKR
Here is an example of what is being refered to as a 5 pin slider. It's the exact same head as the spot Hogg fixed pin sight, just mounted on a movable housing. I use the bottom pin as the adjustable. I can leave it set for 25-65 yards, then dial out past that.
Here is the same sight with single pin.
Can't beat a single pin for targets, I personally don't like it for hunting.
Next time you are shooting determine how many of your shots are kill shots versus perfect x-ring shots.