this is cross-posted from the 510 section. i recieved a couple of blank 510 cartos from a PIF. i filled em, and subsequently vaped em to death over the past 7 days. grabbed a couple of atties and carts, filled em up and went for broke. almost NO vapor production. both carts were pre-filled with foam, so all i did was juice em. the atties are workin, and even direct dripping isn't producing the vapor. have i been spoiled by cartos or am i doing something wrong?