Maverick Vinales has put Suzuki at the top on the second day of MotoGP pre-season testing at Qatar.
Vinales produced a 1:55.43s lap to pip Ducati rider Andrea Iannone (1:55.50s) while Yamaha's Jorge Lorenzo was third, just .1s back.
Scott Redding and Hector Barbera were next with Andrea Dovizioso in sixth.
Lorenzo, Barbera and Dovizioso all concentrated on longer runs.
Dani Pedrosa saw Honda struggle again in seventh while Valentino Rossi was eighth on his Movistar Yamaha.
Marc Marquez was ninth with Aleix Espargaro completing the top 10 on his Suzuki.
Marquez began the test well but a spill at Turn 1 hampered his day although he managed to escape injury.
New tyre options from Michelin were tested with several riders undertaking long runs.
Lorenzo, Dovizioso and Loris Baz put in their longest consecutive runs in testing to date.
Aprilia's Alvaro Bautista was 18th with Australian Jack Miller 19th on the Marc VDS machine which was 2.3s off the benchmark time.