I use an SB and drip whenever possible, I use a tank when I can't. I'm using 1.5 ohm 510's or 1.7 ohm 901 atty's when dripping and 1.5 ohm dcc's in my tank. There's a big flavor difference between atty's and the tank cartos. Atty's taste cleaner to me while the dcc's give a heavier, muted vape. I only get about 3 or 4 tank fills on a dcc before it starts tasting nasty and needs changing. Atty's generally last about a month each on average.