Australia captain Michael Clarke scored his first century of the summer as the tourists dominated the third day of their final Investec Ashes warm-up against Worcestershire at New Road.
Clarke, who came to England with chronic back pain and was at one stage a doubt for the Ashes, will arrive at Trent Bridge next week in fine spirits after scoring 124 from just 98 balls.
Despite 16 fours and three sixes it will hardly go down as one of his most memorable knocks, with a tepid home attack and a flat deck making life in the middle as serene as possible.
But the signs are still positive for Australia, who set Worcestershire a notional 457 to win and remained 393 ahead at stumps with the hosts 64 for one. Nick Compton, guesting for Worcestershire in this game, was the man to fall for 26.
The tourists had earlier declared for the second time in the match, having scored at better than a run-a-ball in their 344 for five, Phil Hughes having helped himself to a boundary-strewn 86.
The day started with the end of Worcestershire's first innings, Australia claiming the final three wickets for 38 runs.
Ryan Harris, much improved and a shade quicker than yesterday, took two of them, with James Faulkner wrapping things up at 284 by bowling last man Chris Russell.
That left Australia 112 ahead and they decided to open with Chris Rogers and Ed Cowan - Shane Watson's day-one century clearly having been enough for him.
After Cowan was dropped at slip without scoring the pair added 46, Rogers taking over Watson's role as the aggressor with a series of early boundaries.
Neither made a major score, Rogers trapped lbw for 26 after Moeen Ali got one to turn and Cowan also leg before for 34 to Jack Shantry.
Cowan, whose Test spot does not appear certain, dropped heavy hints that he had edged it as he walked off inspecting the toe of his bat.
From then on Clarke and Hughes ran riot.
Clarke struck his third ball for four and scarcely slowed down from there. He was dropped by Alexei Kervezee on 32 but otherwise dominated a gentle attack, reaching his fifty in 45 balls amid a flurry of attacking strokes.
Hughes also began to play extravagantly, at one point hitting seven boundaries and a six in a dizzying 11-ball sequence. Gareth Andrew suffered most, taken by Hughes for four fours in an over, while Shantry was clubbed for two maximums.
As the pair thrashed away merrily with seven men on the ropes, the competitive element had all but disappeared.
Hughes eventually fell 14 short of a hundred, bowled by Russell attempting to paddle the ball over his shoulder.
By then the third-wicket duo had put on 132 in 113 balls and Clarke continued in the same vein. Just before tea he lifted Daryl Mitchell for an enormous six wide of long-on as he reached the break on 85.
He heralded three figures with a chipped four off Russell and raced along to 124 before Shantry had him well caught by Andrew at third man.
Steven Smith did his hopes of a middle-order Test place no harm with a lively 43 but holed out to Moeen shortly before the tourists' declared 456 ahead.
Compton's wicket - stumped going forward to Ashton Agar - was the only one Australia managed in 21 overs.