Marlboro Ducati's Casey Stoner has taken charge of the second MotoGP free practice session at Misano, lapping half a second quicker than closest rival Valentino Rossi on the Fiat Yamaha.
Stoner, who headed the field for a great deal of the hour-long session, started out 1'35.878 lap which was quickly beaten by Rossi before Stoner then went back in front, but the pair were only swapping thousandths of a second.
The Australian then upped his pace, slipping under the 1'35 barrier with 23 minutes gone, putting in a 1'34.980. He was the only man to go into the 34s, lapping at 1'34.903 and then securing the session with a 34.806.
Rossi was just under half a second slower on a 1'35.224 while Rizla Suzuki's Loris Capirossi deposed Randy De Puniet from third with his final lap.
Tech 3 Yamaha's Colin Edwards was the only man not to go quicker than his time for this morning, while team-mate James Toseland ended the session in tenth.
Kawasaki's John Hopkins didn't appear for the second session either. He sat out free practice one to get some treatment on a rib injury and Kawasaki maintained he would be out this afternoon... 
Repsol Honda's Nicky Hayden crashed in the last minute, but walked away. He is still recovering from a heel injury picked up during practice for a supermoto race at X-Games 14.
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