Bowhunt/Homebrew have FUN
Smaller might be better on the range with proper lighting, but in hunting situations I would recommend larger (5/16), helps gathering the light....just my .02...
I absolutely love my PXS target and my podiums. Very good choices with lots of options.I currently use a PXL Hunter peep with the 5/32 aperture. I killed a buck at 25 yds at first legal shooting light and had no problem seeing him through the peep. I plan on switching to a Podium or PXS Target peep so I can try a 1/8" aperture.