I have MMCs on 4 pistols and they work pretty well. The first ones I received were somewhat dim but they have improved. Trying to decide between MMCs and fixed sights for my new-to-me S&W 1006. MMCs will be about $150. Smith factorys will be $180. I put some of the Smith sights on my 1076 and they are very very nice but I am generally happy with the MMCs. Besides price, what thoughts would/should be a part of my decision process?