I slapped a no-peep on this year, and have only been shooting inside at about 10 yards since installing it.

I just got back from the range, the amount of light this thing gathers is incredible! I have mine mounted above my one pin (pendulum)and it shows from flaws like nothing else I've ever seen. Even when it feels like I've made the same draw and hand placement, I'm occaisonally still off. A quick glance at the no-peep allows me to correct my form, quickly, and because of it I'm shooting some of the tightest groups ever for me, sub 1" at 20 yards is the norm. A fabulous addition to any bow.