Multiple champions Ten Kate Honda have resumed their place at the head of the World Supersport timesheets after Andrew Pitt eased to provisional pole position at Phillip Island.
The reigning champion made substantial gains on his efforts during free practice, moving up four positions with a best lap of 1min 34.833secs.
An ominous session for Ten Kate's rivals, practice pace setter Kenan Sofuoglu followed his team-mate in second position just a few hundredths further back, while it was only until the latter stages of the 45-minute session that any other rider could get to within half a second of the pair.
Eventually, Yamaha's Fabien Foret moved into third position with a quick effort during the last five minutes, the Frenchman proving a respectable two tenths adrift of the Honda pair.
Triumph continue to be well represented by Garry McCoy, the local rider securing a provisional front row slot for the British manufacturer in fourth position, even if his progress was interrupted by a slip late in the session.
Cal Crutchlow was fifth best after only making a small gain on his quickest lap during free practice, while Australian pair Mark Aitchison and Anthony West on their respective Althea and Stiggy Hondas followed in sixth and seventh.
Gianluca Nannelli joined McCoy in flying the Triumph flag well inside the top ten, while Robbin Harms was a strong ninth with the new Veidec Honda. Ireland's Eugene Laverty, meanwhile, was tenth quickest on the Parkalgar Honda.
Elsewhere, Kawasaki showed promise in the early stages of the session, but Joan Lascorz and Katsuaki Fujiwara would eventually slip to 13th and 16th positions. Suzuki's leading representative was Barry Veneman in 12th.