Finally watched the race. I don't think the tires were going off. I think the riders took turns cranking up the wick, and the fuel computers intervened late in the race. According to Pedrosa, the fuel computer turns off TC to save fuel. Between Honda and Yamaha, I think the Yamaha has better tractability and that helped Lorenzo eek out a late move when Stoner's tight lines cost him a great deal of time.
Nice racing this weekend. Too bad we have to wait several months in between the good races.
Yes, makes sense for casey at least, the honda has always been the most marginal fuel economy wise, and the ducati he was previously on was the best, with the desmo valves or whatever. His riding style, less smooth than some, probably doesn't help fuel economy on these tight tracks, and there is little evidence that the bridgestone "'hard" tyre which he was apparently on can be worn out in any circumstance by anyone.This may also explain assen; if I were him I would be blaming the tyre technician rather than letting opponents know of possible late race vulnerability due to fuel constraints.
Not so sure about jorge and dani. I think jorge is just extremely good, over-rode the bike the whole race and had no business finishing 2nd, rather than having fuel constraints which I do not recall being a problem for yamaha since the very early days of the pneumatic valve engine. I had a feeling even during practice that dani was going to have one of those week-ends where he achieves a good set-up and is entirely happy with things and "on " it. On such week-ends he doesn't worry over-much about qualifying times and is well nigh untouchable; all credit to him for managing this the second race back after a further significant injury.