I believe you're correct. The V2 has the short wicks and the air hole just above the threads of the 510 connection. I've been using 2 w/ the short wicks and solid tanks (so I can't even see the juice) on my Provari's. I haven't had a problem with wicking and don't have to fiddle with it or pay too much attention to how I'm holding the tank. I can vape it pretty much dry before refilling.
That said, I've got a couple w/ long wicks coming so I'll see if there's a difference. I hear a lot of people cut the long wicks shorted anyway, to get better flavor and/or vapor production.
The ones I've received from Madvapes have long wicks, and air holes on the 510 connector just above the threads. Madvapes calls them V2, but this is the only version I've tried, so I have no idea. I haven't trimmed the wicks, although I've seen the posts from some who have and claim the performance improved. I've had great luck with them as-is, so I haven't tried any modification.
I'd love if anyone can provide a definitive answer on which version this is, and who else has them. OTOH, I'm happy with Madvapes all around, so I'll probably just keep ordering from them. Given the lifespan of these, a buck or two either way isn't all that important.