RE: single pin
I love using a single pin sight for hunting. My range is out to 35 yards. I do the same thing that mobow does, dial it dead on at 25 yards, I might be 1 1/2 low at 35 yards, might be 1" high at 20 yards. It is so nice not having to remember which pin at which yardarge. Simply range the area around your stand, when Mr. Big Boys steps within range, put your pin on him and bust em!