anyone have any tips on how to NOT push the un-flanged cartos all the wat thru? and get them lined up, ya know, flush on the bottom with the tank(if that makes sense)? seriously having trouble with getting my boges lined up with my IBTank.... seems like using the smok flanges were easier, but I sure prefer these boges so far. have to have my BF fill my tank for me with my boges cause I just keep pushing the boges right on thru...booo.