Terry, I wasn't critisising Casey! I did say "a good win" but it doesn't alter my opinion that Ducati have an advantage due to their trick valve gear.
I raced for 31 years and know from experience that having even a slight advantage mechanically can make a BIG difference to results over a long period.
However I say again Casey is a good rider at a time when there a lot of good riders.
Personally OB, I would say Ducati's big advantage at the moment comes more from their extremely trick engine/fuel management systems (especially through corners), than the desmo valve gear
Both the Honda and Yamaha engines are more than capable of revving to the the same insane levels as the Ducati, they just can't do it over a full race distance.
Additionally, the Yamaha is never going to match the straight line speed of either the Ducati or the Honda because it has to have an extra (power sapping) idler gear in the drivetrain thanks to it's contra-rotating crankshaft. Conversely, that is reckoned to be the main reason the Yamahas can easily out corner everything else on the track
![Grin ;D](http://forums.sohc4.net/Smileys/default/grin.gif)