I was going to try a PNP sight but I first thought I would go the least expensive route. I purchased a couple different sized peeps and I found that the 1/4" hole diameter is perfect for my draw and sight housing setup. The Ring around my sight housing matches the hole in the peep. I can determine immediately if I have proper alignment.
And although I shot well before out to 40 and 50 yards, my groups are even tighter now that I have the correct size peep.