Before starting a new topic, I figured I'd add a follow-on question since it's on topic and seems to be a popular post. Do any of the resident experts know of a reliable USA based source for LR Mega Cartomizers similar to ones offered on Totally Wicked's site? They seem to be sold out and I've been playing around with the Mega Cartos on my spare eGo bat. I much prefer the vape experience on the LR 510 cartos so I'm thinking an LR Mega Cart would be the best of both worlds. What do you all think of them? Worth it? I know they're a pain in the butt to refill but I had a standard Mega last me two full days on one fill. All that said, I'll be stocking up on LR 510s. I just LOVE them. w00t