I also drill out the aperture on my peep sight right before season and spend time practicing with the larger aperture. You will lose a tiny bit of accuracy this way, but it is MUCH easier to see pins clearly and in low light conditions with the larger hole in your peep. The hole in my peep is probably close to 1/4 of an inch when drilled out. I can still manage to shoot anywhere from 2" to 4" groups this way at 30 yards every time which is plenty to kill a deer every time at 30 yards.