I have to say after seeing the frame in the flesh on sunday for the first time, it looks sooo lush. Alot better than in the pics. The finish is really top notch.
And about the flex, this is what I was worried about. However, Si was running his with out a booster on the rear brake and it was fine. It did flex a little, but not as much as my control does. And it didnt feel flexy at all. Granted I didnt ride it properly, but it looks very good.