I just bought a k100 mechanical and after a couple days of using it, I noticed other k100's said KeCig k100 on the telescoping tube; mine says k100+ on the tube. Nowhere does it mention KeCig on mine. Now I'm wondering if my k100 was manufactured any differently. Or perhaps its a clone of a clone haha. I searched for my k100 online and could not find anything about the k100 I own. Everything seems to be KeCig k100. If you know anything about this mod please let me know. Thanks!