Twisted Arrow,
The "No-Peep" allows you a completely unobstructed view of your pins in any light.......you don't look through it, it is a reference that sits to the side and above or below your pins.
It is absolutely tops for low light shooting. There is nothing that allows you to see your target and pins better in low light than the "No-Peep".
It is extremely precise too. I was shooting 3-4" 6 arrow groups last night with at last light....almost dark.....at 50 yards.[:-]
I stepped out my back door a few nights ago to shoot at my Bionic buck at last light (I like that "Prime Time" practice).....25 yards , first arrow dead center, next arrow dead center Robinhood.
Reminder why I don't shoot groups under 30 yards.