Yes, in Italy we are used to speak of V1, V2 and V3, as you can see in Danielino's video up here.
Btw, I just dropped by here to leave a comment about UFS (V3 in my case): this thing is terrific, one of the best
vaping experiences so far for me. Speaking the truth, it has a somewhat steep learning curve, ranging from horrible dry scratches to irremediable flooding, but when you start to develop a little bit of sensitivity it delivers, it really delivers.
(as amazed as I am about the UFS, I also have to admit to be more and more satisfied with my two small pennys, even directly after UFS they do not make a poor impression, on the contrary they even perform better in some aspects - like TH, for example)