ORIGINAL: JeramyK
Here's the picture that I was going to post.
You can see how close the No-Peep is to my sight light but so far I've not had a problem with not enough light getting into the No-Peep.
Did you use the bracket that came with the No-peep? I noticed they had more than one bracket for sale on the website so I hope I don't have to end up ordering some oddly shaped bracket to make it fit, LOL.