Boris - An 18650 proto is in the works. Hope we'll see something on it next month.I thought I saw it in this thread, but now I can't find it. Old Goat, are you doing any mods with a 18650 battery? I like the idea of longer battery life. If not, that's understandable - the case required for a fatter, longer battery may be harder to find.
As far as the regular 3.7 volt bottomfeeder, what is suggested for use? An atomizer with a drip tip or a blank cartomizer, or something else altogether? I'm sorry if these questions have been answered as I've been digging through a ton of information and it's becoming slightly garbled together. These seem like quality mods with great prices, and their reputation as well as that of the maker seems pretty flawless.
You can use both attys and cartos with the 3.7. Most prefer LR attys though.