I've just seen the Lavatube v2. It's a very nice-looking and, from reviews I've seen, a well-built and functioning device. I come from an electronics background, so the concepts of VV and VW are familiar to me, and I find the math relatively easy to do in my head. I've seen a lot of talk also, however, about the Vamo. From my understanding, VW is essentially the simplified version of VV, because you aren't required to do the math with the Vamo. Since the math isn't difficult to do for me, and I know how to keep an eye on resistances and voltages, is the Lavatube the way to go? The new version is a gorgeous device, and I'd like to know that I'm getting the best (without spending $200+ for a Provari).