WSBK title contender Michel Fabrizio, standing in for Mika Kallio at the Pramac team during this weekend's Czech Republic Grand Prix, found Ducati's MotoGP machine 'completely different' to his usual 1198 Superbike.
Fabrizio, whose last MotoGP appearance was on a Gresini Honda at the 2007 German Grand Prix, was unsurprisingly 17th and last at the end of the single Friday free practice session.
The Italian, who won his first WSBK race earlier this year and is third in the championship standings, set a best lap time 3.8sec from fastest man Jorge Lorenzo (Fiat Yamaha) but only half a second behind Scot Honda's Gabor Talmacsi.
"The Ducati Desmosedici GP9 Sat is a completely different bike compared to mine and one hour of practice it's not enough to understand our potential,” he said. “The bike is much lighter, the engine much more powerful and also the traction control is really good.
“I still can't manage to brake as I would like to because I am used to Superbike reference points, but from tomorrow I should improve. I found the biggest difficulties in the front part of the bike and it will be there where I will have to concentrate tomorrow morning to be able to feel the bike more mine,” he added.
Regular Pramac rider Niccolo Canepa was just under one second faster than Fabrizio in 15th place.
"I didn't push to the limit today,” said the MotoGP rookie. “I had some difficulties to find the right rhythm, but at the end of the session after making some modification to the set up of the bike we understood there is some margin to improve. It seems like we have found the right direction to follow. Tomorrow I will surely push more to conquer a good lap time to start in a good position on the starting grid."
Kallio, who has switched to the factory Ducati team for three races while Casey Stoner seeks treatment for fatigue, was seventh fastest.