Dani Pedrosa improved his best lap time by 0.379sec to stay at the top of the timesheets during the second and final day of MotoGP testing at Valencia.
The test was the first time the big three MotoGP brands - Honda, Yamaha and Ducati - had all run their 1000cc bikes on track at the same time.
Repsol Honda riders Pedrosa and Casey Stoner were first and second on both days, using the new RC213V.
"We had another good day of testing today," said Pedrosa on Wednesday evening. "Basically we've been working on the engine mapping, to better manage the power of the bike, and with the rear shock.
"The changes we've done on the bike from Brno to here have been positive and we finish the year with a good feeling. It will be interesting to go to Sepang and continue working under very different conditions, with harder tyre compounds and a much higher track temperature.
"In general, I'm leaving Valencia in a good mood, more for the improvements we've made than for the lap times, which are not so important for me in winter testing".
Reigning world champion Stoner was just 0.161sec slower. Both Stoner and Pedrosa set their best lap times early in the final day.
"Everything has gone pretty well to be honest, on the first day we just needed to compare the bike to the one we tested earlier in the year. There have been a few small improvements especially in terms of the bike working with the new 2012 tyres," explained Stoner.
Stoner's main issue during the test was chatter on corner entry.
"The front tyre gives us quite a lot of chatter so this is something we are trying to improve and the new bike helped with that slightly," he said.
"It's something we've had since last season with the 800s is a lack of feeling and some chatter coming from the rear on the way into the corner which is something we still need to improve with the RC213V but we believe we know the direction to go in to improve this situation.