For me, I go through alot of trouble to find great crystals. For some reason people dont talk much about it but I feel that is a major difference with the gens being so clear and non diffractive at angles. The height is also a major issue for me. I have seen the dealers changing crystals from time to time and scoop up the ones that are good at angles and height above the bezel. All this AR aside, the new DSN ones are pretty good but I usually take the AR off as it isnt that noticeable on gens and I usually like Prev/A builds.