MSS Colchester Kawasaki's Simon Andrews stayed at the head of the British Superbike field in the second free practice at Snetterton but Airwaves Yamaha's Leon Camier ran him close.
Andrews was fastest in this morning's opening session and was the only man to run in the 1'05s bracket. Andrews was a tenth of a second faster in the second session, lapping at 1'05.888 while Camier, who was down in fifth, upped his pace and finished with a lap of 1'05.890, just two one-thousandths off the pace.
Hydrex Honda's Karl Harris also broke into the 1'05 club with a 1'05.889 lap for third while team-mate Stuart Easton was fourth with a 1'05.924. The theoretical front row is covered by four one-hundredths of a second.
HM Plant Honda's Josh Brookes improved his time from this morning to go fifth fastest, a tenth off the pace with team-mate Glen Richards in sixth with a 1'06.156. Andrews' team-mate Julien Da Costa occupies the third slot on the front row while Worx Suzuki's Michael Rutter is eighth.