Thanks for that. I find that my 510 cartos, whichever make, gum up really quickly with LF Cigar VG, which is a shame, because it's my favourite. Tried the PG and it just didn't do it for me. Battery life is fine with my Riva kit, but with Cartos, I find the LR Boge the best, and especially like the Smoketech dual coils, the only trouble is I often get at least one Smoketech out of the five to malfunction, and when I was using other juice, I could get them to last maybe a week before getting too gummed up, the VG cigar has them lasting two days at most.
I recently got some Kanger horizontal element cartos which were just terrible. They'd last about five blasts and then taste burnt. Total waste of money. Might have been a bad batch, but makes me wonder why LF actually sells them.
Though I spend about £20 a week on cartos and juice, compared with £30 a week for analogues, it still annoys me that so much of it is wasted on cartos (usually) which simply don't work. I can't think of any other product where people put up with such a high failure rate (510 kit, anyway).
That's why I wonder about disposables.