You didn't really say what you'll be wanting to use on top of it, which I think will play the more important role. I actually picked up another MVP2 the other day, mostly because I could get it for $10 cheaper, none of the things I use it for while out and about really need the extra 2V, and it's likely to be a good daytime mod for 6mo-1year. It was $10 I could put towards building my hug machine while the tech transitions, though that floating 510 could solve some issues if you're not careful about over-tightening or don't have some $0.05 adapters.