I practiced shooting without a peep for a while and actually got pretty good with it. Groups at 25 were the same as whenI had a 1/4" peep. I too got worried about longer yardages. When I'm practicing and relaxed it's one thing. I can take my time and find my anchor and all that. In a stressed situation, I'd like to be able to depend on something that cannot change without my notice. I now shoot a 1/4" G5 meta peep and have zero problems seeing though it at dawn or dusk.