So I made it up to Vape Keeper 4.0 today.... now THATTTT thing was hysterical when I was done. Essentailly a backwards .... (blow in, not inhale) filled with flavorless vape juice, the mouth piece being blown into ending well below the suface of the juice in the chamber (now wouldn't you think, that.. I dunno like would hold like? SAME STUFF RIGHT? but now, it just bubble right on up out, and there went like 10 bucks worth of potential juice LOL