I too am pleased to find this thread still going, and other people enjoying this nifty pipe. I'm still enjoying mine and toying with getting another (or even just the bowl) in a different color - problem would be, WHAT color??!! I like several of the colors. (-:
Thanks for the tips on getting the battery compartment open - I honestly thought I was going to have to send mine back that first evening!! I tried a rubber jar grip, including some other things, ended up spraying it with WD-40 and letting it set awhile. Ugh! But after that I did manage to get it to unscrew, and now I never screw it in all the way and haven't had any more trouble.
Glad for that info about where to fine the coil heads for the original tank. Might get some although I haven't been using that tank lately and don't really need it. Bookmarked the site anyway. Right now, I have a silver SMOK tank on mne.
Interesting about which way the battery goes in - must have made it one way in some batches and the other way in others! Mine goes in positive side up.
Mines positive up also. I want another one. Love all the colors. I will probably go with the Purple. I received a Splash Carto Tank today to try on it. I haven't tried a carto tank yet so I'm looking forward it.