I use a 1/4" peep I believe.....i figure it to be small, as I compare to other peoples rigs. It's small enough that I can't see the whole scope ring in it, but I shoot with both eyes open and the sight picture is plenty visible. I havent had a problem centering single pins in it. Should I look into getting a bigger peep for light gathering and try to aim the way you are describing? Would it be worth it as I have already gotten used to shooting the way that I do?