I use a 1/4" peep but mostly because I need it for shooting at hogs at night with my Hawglite.  You might try a bigger peep.
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Warm regards,
Kevin

Pro Staff: Bowtech, Alpen Optics, ThermaCELL, Hawglite, RedHawk Archery, StarrFlight Archery, ProString, Valkyrie Archery, Global Outfitters, Buck Bomb, Mossy Oak
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