Well the situation is that with anything smaller than 9/32, it is hard to center the front sight inside the peep sight.
Well, you gotta do what you gotta do, but I'd advise against doing THAT. I know centering the pin guard in the peep iswhat a bunch of hot shots say you should do nowadays, and I know the theoretical rationale behind itbut.... I suspect they make such claims because they are paidby sponsors who make sights with round pin guards.
Just center the pin in the peep and forget the pin guard. That way, if the pin doesn't rotate absolutely perfectly and gives you a bit of an oblong hole, your eye will still naturally center the pin in the peep for you. Not to mention it gives your brain one less problem to worry about while you're trying to aim.