I had a tritium pin sight glowing brightly in front of me this year while hunting from a completely enclosed ground blind. NICE South Texas ten point standing at 23 yards. I could see him with my eyes, I could see my pin, but I just couldn't see through my peep while in the dark enclosure. I use a "hunter sized" peep right now and I might widdle it out some if I can't learn to do away with it all together.

Once you get your Double bull, definately practice from it in low light conditions before season. That way you will know for sure what you are capable of.