I don't know. As far as I can work out Casey either "on" or "off" which suggests (to me) that he's struggling setting up the bike. Sure, he could be doing this deliberately.
The other "fudge" factor is: who are Bridgestone going to nominate as their primary team? Will they stay with Yamaha or follow Rossi again? When Casey won his championship the Michelins were crap and Ducati was Bridgestones primary team. When Rossi fired Michelin Bridgestone nominated Yamaha as their primary team. That means the tyres are developed with the Yamaha in mind and everyone else must just take what they get.
*edit* Lets play (mind) games. Let's assume that Bridgestone go with Rossi to Ducati. Will they be able to supply a tyre that suits the Carbon Fibre frame? Previously they were supplying for the trellis frame. Is it the CF frame that is causing Caseys inconsistant results?
Maybe some facts wouldn't go astray here.
MotoGP is approaching it's second full season of control Bridgestone tyres.The tyres get made in 1 batch at the beginning of each year and are alloctaed at random.Every rider has the same tyre, there is no 'primary team'
Michelin were BANNED from flying in specificaly tailored tyres overnight at GP's when Michelin stopped that practice the tyre performance went south.
Rossi never 'fired' Michelin, he said he was going off to drive rally cars unless he got Bridgestone tyre's Dorna kowtowed and forced Bridgestone to supply Rossi tyres. Pedrosa/Puig sacked Michelin after the travesty at Laguna Seca 08.
Stoner's front end drama's are down to the 2010 52mm Ohlins TR forks (TR for through rod) as soon as he switch back to the 48mm 09 TTX fork the poles, the race wins and fastest laps quickly followed, so join the dots on that.
In Sepang 09 when torrential rain hit the track an hour before the GP, which left the entire field guessing set up on wet tyres without even riding a lap, Casey Stoner finished the length of the straight ahead. Must have been a fluke................