Follow up for Theytak and Dfoley.
So, finally got a chance to play a bit with my PUP yesterday (or 2 days ago? Forgot sorry ).
The sample is still very small, but good enough to start talking I guess. I got around 100k xp (a bit more probably) and killed ~150 monsters.

Tried a good mix of SP and VS, but SP managed to pull better numbers than VS only a few times, like 2 or 3? Wrote it down at home. Not talking about averages here, talking about max damage.
Vsmite got up to 4,3k once, it was of course usually staying much lower, but it was always above SP except those mentioned couple of times.

This is the "strange behaviour" I was talking about a few pages ago. Looking at my spreadsheet I can see well that aside from a few strange setups, Pummel should perform always better than Vsmite (altough the difference is small), but when I go and use it on the field, Vsmite is always above Pummel.

Dunno, anybody want to make up more hypothesys? Want to see my gear? (altough it's nothing special, really)