Wow! Quite a few opinions on the new tranny and none of us have driven it. I am not wild about the option of jerking between gears, by keeping full throttle during shifting (unless you like to drag race).
I assume S6 is going to have the most rapid shift times, which you would conclude would be the mode to use when at the track. However, if a gear change is going to get scratch from the rear tire then I guess I don't want to be changing gears in any corners. Nothing better to upset the balance of a car mid corner than a jerky shift (well oil in the corner works pretty good too). I need to drive and then I'll decide.