I have two hcigar and a infinite Stingray clone. Of the three only one switch actually works acceptably. By that I mean it does work, but they basically sit in my mod stand looking pretty. My four Nemesis, two Caravella, my Oriigen, Atomo V2, and Magneto all work flawlessly. The Stingray's in my opinion look fantastic and work like sh¡t. With my Sony VTC4 / VTC5 batteries they seem to work better than my Efest 2100mah 30A's. I believe it's due to the battery wrap covering more on the base of the Efest's. I bought them all at the same time, had I known the switch was crap, I'd have never bought one. My Dad has two Stingrays and he has the same problem with both of them. When I want to use one, I swap the switch off a Nemesis to avoid the frustration. I've cleaned, lubricated, polished all of the three and have had no luck. Oh well...the look good on the stand.