RE: Lots of questions, need some help
The design and function of the Copper John's is excellent. Though I do NOT like the pins. To ME, they are not bringht enough. I put on the pin light, but blew it out twice. I also broke one of the fiber optics while shooting, but Copper John's sent me replacement fibers for FREE!
I hunt with my sight, as well as shoot Techno, and DART. I needed brighter pins, and needed RELIABLE light.
I switched to a Trophy ridge Nitro extreme. The pins are brighter and the glow sticks a enough light to shoot my target peep while hunting (I shoot both eyes open).
The Copper John's Is a MUCH better built unit, and I like the way they designed the pins for getting zero gap if neded better than the spot hogg (again, a personal preferance).