Another vote for the adapters. I use boge low resistance cartomizers with KR8 or 510 threading and just use and adapter where necessary. I like the big Ego battery (510 thread) - especially ones with the mini usb adapter in the end so they can be used as passthroughs and it's also just easier to charge them. (Cignot is one seller that has the se).
Sometimes though I like the smaller more cigarette like experience that I get from the KR8 batteries I have.
Sometimes though I like the smaller more cigarette like experience that I get from the KR8 batteries I have.