Maybe go with something like a Pico 75, or even an innokin Coolfire Z80? Both pretty small and light, although not as small or light, and not a square tube. But being replaceable battery, maybe better for the long haul?
As the Feds (and States) get ever more draconian, might be hard to find replacements. After all, stainless steel, pyrex and lithium batteries are made out of tobacco....
As the Feds (and States) get ever more draconian, might be hard to find replacements. After all, stainless steel, pyrex and lithium batteries are made out of tobacco....