i like 2.0 but i watched what's his name pbsuardo's review.
mvp2 was most accurate using 2 ohms.
check
www.desertvapes.com for dct tanks, i bought 4 from them. they don't come with drip tips but they were around $6 a piece. and i buy driptips from fast tech all the time.
also fast tech, i bought 4 from them around $5 i think, different colors, the green in person is a lot prettier than the picture they have listed.
i buy my cartos from ibtanked, if you buy 10 the price drops.
also the thingy ibtanked sells makes priming a breeze, with or without the tank. i have ordered 12 of those!
which ever ikenvapes you get, get the flanged ones!!! i made the mistake of getting the ones that didn't have it, and well it's a mess because the tank will slide right off.
ikenvapes are out of stock a lot. so in the mean time you always have ibtanks smokcartos.
i love my smok dct, and i have ibtank, just one because they are pricey but i will be getting more.
good luck and update how you like or don't like what you get!