F2 - I think that the WCEs are pretty decent boards (I have a 163 SL WCE from 07/08). There are better ones, but they are ok.
And now they have a pretty modern shape, although the question is where it came from? F2´s development department? Or ...
The specs (waist width, scr, taper, etc.) are pretty similar to the SGs (and maybe also other successful raceboards - I don´t know about their specs (Kessler, Black Pearl)). But I guess that the courses somehow bring you to a certain shape ...
So it´s not just the color that changed