I've been searching for a vv/vw mod for a while. I like the performance of a dna20 mod but the price and availability are big problems at the moment. I think I'm gonna get an iTaste vtr when it comes out. It has all the performance of a vamo (I think, haven't seen full specs yet) in a much smaller, more pocket-friendly package. I believe the 510 connector can raise up all the way to the top of the mod so you can attach rda's, etc . . I hope so, otherwise I might look at the mvp 2. But I really like the form-factor of the vtr and the fact that it uses an 18650.
Until then just using my ego-twist for my vv needs - which is actually a pretty decent vape, anyway.