About a week ago I received an order of five packages of standard SI cartos and I'm having a world of problems with them - all so far seem to have a super-tight draw, gunk up/turn black inside within a day, and impart a really muted, funky taste to the juice. SI isn't my usual brand of carto but I've used them before and they were fine - in fact I was so certain they'd be good that I went ahead and popped 'em all out of the foil packets (to save storage space), so sending them back isn't an option. I know for a fact it isn't the juice, because juice from the exact same bottle tastes/vapes fine in another brand of carto (just basic crappy Kangers). Anyone else have a problem with SI cartos recently??