For those of you that own the Janty classic does this produce a lot of vapor for you? I just got a DSE 901 and that is like smoking a huge cigar compared to my Janty. The Janty cartridge seems to last most of the day for me where I can burn up a 901 in a few smokes. Also don't seem to be having much luck with the manual switch with this thing. Any tricks using this device anyone can share?