RE: 3-Pin or 5-Pin Sight?
Personally I think the fewer the better, especially for a novice. I'm sure we can all tell tales of when we picked the wrong pin and overshot or undershot our mark. I buy the 5 pin sights and take two out so that I have a 20, 30, 40 and two spare pins; although with my new set-up I have added a 50.