Thanks for the reply BGfisher. The problem is when looking through my peep sight Which is a Red Hawk low light ,the size of the pin throws off a halo.This might be caused by the fact that it is so bright,I don't know.I will try to cover over some of the fiber optic and see if it helps.But this will contradict with what I like so much about this sight.I guess I can't have my cake and eat it too.I just thought that if I could switch the fiber optics I would have what I was looking for.I guess an E-mail to HHA is in order.