I want to try dripping. Been vaping almost a year with cartos and tanks and am currently experimenting with clearomizers. I've been reading a lot about atomizers and am now totally confused! So I want to know what's a good atomizer to start with....I have a couple Riva 1100 and kgo 650 - I see they come in different resistances - I have no idea what resistance would work well with my batts. I'm also curious if dark juices work okay with attys - I have a coffee and a caramel juice that kill cartos in a day. Also, about how long do they last? Thanks