I have a hogg wrap on the smallest 5 pin housing Spott Hogg makes. I also have the .010 diameter fibers and with that set up they are never too bright regardless of light conditions outside. Maybe with larger diameter fibers they could become too bright, creating a halo effect but I have not had any issues. I honestly don't know if the wrap is worth it, I didn't notice a big difference in my sight with or without but again, maybe that is because of the small fiber optics that I choose??