MCE British Superbike Championship leader Tommy Hill knocked fellow Title Fighter Josh Brookes from the top of the second practice timesheets on his final lap at Silverstone on Friday.
Hill, who had been a close fourth in the wet morning session around the new Arena circuit, put his Worx Suzuki 0.383sec ahead of Brookes on his 13th and last lap of the session.
Brookes, one of several riders familiar with the 'new' Silverstone from this year's World Superbike event, is only fourth in the standings after a poor weekend during round one of the Showdown at Cadwell Park.
The HM Plant Honda rider, third this morning, had been in dominant form prior to Hill's late charge and finished the session 0.143sec ahead of Michael Laverty.
Laverty starts this weekend's penultimate round as Hill's nearest rival, trailing the Englishman by 16 points, and had been quickest of all in the wet.
A notable performance came form Motorpoint Yamaha's stand-in rider Loris Baz, who improved from 24th this morning to ninth and top Yamaha this afternoon, at the start of only his second BSB event.
Laverty beat Michael Rutter by just 0.001sec in first practice and the Ducati rider was once again competitive in the dry, claiming third place as the final rider within one-second of Hill.
Another BSB veteran, Chris Walker, also made a strong start to the weekend with fifth place for sorrymate.com Honda in both sessions. MSS Colchester Kawasaki's Simon Andrews was likewise sixth in morning and afternoon, while third-in-the-championship Ryuichi Kiyonari could only manage ninth and seventh places.
The sixth Title Fighter, Laverty's Relentless Suzuki team-mate Alastair Seeley, suffered most in the afternoon session, falling at Farm before he had set a single fast lap, ending his session. Seeley had been sixth this morning.