I don't know… They're not that bad. If it wasn't for anal rep collectors schooling them on gen forums, most gen owners probably wouldn't be able to tell the difference.
Oh well, besides the two known flaws (dw, crown) where especially the dw is shouting "REP!" from miles ahead it's the thickness of them which is a very obvious tell if you look at them, not to mention the feeling which indeed makes a remarkably huge difference. IMO they are far far away from 1:1 or "ultimate" and heavily overpriced. Having said that, I own a 2014 Safari rep myself, just because I like it.