I may or may not have scored a couple authentic KFL+ v2 RTAs on flea bay. They were listed as the real deal, but the price tells me they'll be clones. I don't care really. If they're clones I can make them work if need be. My original, genuine one is coming up on 5 yrs old and there's literally nothing to wear out. I'm more likely to lose a screw or an o-ring, that would be unregulated and can be replaced fairly easy. Or possibly drop it out of an airplane or skyscraper and break it. The one I have has taken a beating over the years and still good to go. I just like the idea of having a couple functional pieces for back up.