Nash Rawiller claimed the ride on Queensland star Buffering after he took a stranglehold on favouritism for the Group One BTC Cup with a seven length demolition at Eagle Farm on Wednesday.

Rawiller was approached last week to ride the son of Mossman in the BTC Cup (1200m) at Doomben on Saturday week but could not give trainer Rob Heathcote a commitment at the time.

Damian Browne has been Buffering's regular rider and rode in Adelaide last Saturday when Buffering was due to start in the washed-out Group Two Victory Stakes at Eagle Farm.

Jim Byrne deputised aboard Buffering when the gelding romped home by seven lengths in the weight-for-age Coca-Cola Amatil Handicap (1200m) at Eagle Farm on Wednesday.

After the win Heathcote was delighted to confirm Rawiller had accepted the Buffering ride in the two Queensland sprints.

Buffering sent a chilling warning to his Group One BTC Cup rivals when he made a one-act affair of the race, leading all the way to defeat former Horse of the Year Scenic Blast.

Moneysaver finished third, a further three quarters of a length away.

Trainer Rob Heathcote believes Buffering is a worthy BTC Cup favourite.

The gelding was at $2.80 with TAB Sportsbet following his Eagle Farm win with Sydney gallopers Pinwheel and Sea Siren next best at $7.

"He's been racing against the best two sprinters in the world in Black Caviar and Hay List and he put them to the sword today," Heathcote said.

"The plan was for him to lead. I told Jim he's led Black Caviar and Hay List and there was no way I wanted Adebisi to lead him."

The major flop came from Adebisi who finished last, more than 22 lengths from the winner.

Stewards immediately vetted Adebisi and questioned trainer Desleigh Forster and rider Chris Munce who were both stunned by the four-year-old's performance.

"There's nothing wrong with him but I could see he was in trouble as soon as they jumped," Forster told stewards.

"His action wasn't right 100 metres after the start but he didn't handle the wet track."

Despite the flop Forster is happy for a rematch with Buffering in the BTC Cup (1200m) at Doomben on Saturday week provided Adebisi recovers satisfactorily.

Heathcote praised Racing Queensland Limited for its decision to add the weight-for-age race to Wednesday's program following the wash out of last Saturday's Group Two Victory Stakes meeting.

"It was a good decision as he's an important horse for Queensland racing in the winter," Heathcote said.

"I've seen the BTC Cup noms and he'll trim up a point or two further now.

"He's proven at weight-for-age and the others aren't but I was a little surprised at the ease of his win."

Buffering's victory capped a big day for Heathcote who also won the Group Three Gunsynd Classic (1600m) with Trump.

Trump ($3.30) stormed home to edge out Goldslick ($31) by a long neck with Brambles ($3.20 fav) a further 1-3/4 lengths away third.

"I thought he was a good thing beaten behind Morning Captain last start and he'll go on to the Rough Habit Plate next," Heathcote said.

"He's a work in progress and I've taken him to Rockhampton and Melbourne.

"I'm sure he'll get 2000 metres and he's nominated for the Derby but we'll see how he goes first over 2000 metres in the Rough Habit Plate."