Well, I filled five cartomizers, each with a different flavour. Only two produced vapour, the rest.. nada. I have contacted them about this. I'll keep y'all updated as to how they handle this problem.
If the cartomizers aren't producing vapor, are you sure the problem is with the juice and not with the cartos themselves? I don't claim to be an expert, but in my experience, the times I've had trouble with no vapor production it has virtually always come down to a problem with the cartos - or to my refilling technique - and has not been related to the liquid I was using. If you get only a small amount of vapor, then perhaps it is the liquid or the PG / VG ratio. If, however, you aren't getting any vapor at all, then perhaps the cartos have died or they've been overfilled and can't wick properly to provide the vapor you are looking for. Just a thought....