The reigning double world champion has won the last two Spanish Grands Prix at Jerez but comes into this weekend off the back of a non-score in Portugal and a struggle to sixth in America.
A key issue for Bagnaia has been a vibration on the rear which has intermittently cropped up over the first three rounds and is something other Ducati riders have battled.
After a low-key start to practice on Friday at Jerez, Bagnaia smashed his own lap record from last year to top the afternoon session by 0.100 seconds.
“We used a different strategy compared to a normal Friday," said Bagnaia.
“We used this Friday as a test and it was very useful. We tested more things than normal and I’m very happy.
“We didn’t have vibrations, but normally the vibration arrives on Saturday in the sprint race.
“And for that reason, the feet are on the ground. But my feeling has increased on braking, entry, [it was] much better, less movement. So, very happy.”
Source: Autosport