Ordered some G4 cartomizers last night. Tried ordering some before from Unsmoke, but something was wrong with their payment system. Anyway I'd like to hear anyone's thoughts on them. Especially anyone who has had experience with them. They look about like a Vortex only threaded for the 510. No wick, no batting, sounds promising, but I expect it to have similar problems to the clearomizers such as leaking and cracking and possibly a shorter life span of the coil.