I use a Montana Black Gold Ascent 4 pin. The first three pins are green-amber-green and then the bottom pin is red. This is the pin I use as the floater with the adjustment wheel. I like a four pin as it gets me out to 50yds, and anything beyond that I figure I probably shouldn't be shooting at, if I don't have time to range-adjust the wheel-shoot. For me personally, if I am rushing the shot at 60 or beyond, I shouldn't be shooting.
I also use a 6in dovetail to give me a longer sight radius; which I believe can add alot to accuracy, plus the farter your pins are from your eye the finer the point.