Caspar Fownes-trained dirt specialist Gun Pit can act as banker in the final leg of tomorrow night's Triple Trio at Sha Tin, booking his ticket to Japan for the Champions Cup and the Tokyo Daishoten next month in the process.

Gun Pit is six from six on the all-weather track at Sha Tin and even though the five-year-old could be seen as vulnerable first-up since July, Fownes has given the son of Dubawi a solid grounding at the trials and he looks ready to produce something like his best.

The 1,650m actually looks ideal after four 1,200m trials, as does barrier three, not that jockey Zac Purton is likely to make much use of the gate.

Early in his career, Gun Pit won races heading forward and sitting handy, but last season all of his victories came after swooping runs from near the tail of the field.

With an 1,800m test less than three weeks away Purton won't be adopting pressure tactics with 132 pounds but, any possible track bias aside, he should get a suitably run race for closers to get into the action late.

John Size has three fascinating entries, all of them stepping up to the extended mile for the first time: Access Years (Joao Moreira), Eroico and Tour De Force.

They aren't the only runners with distance queries here, with John Moore throwing Exciting Dream (Chad Schofield) into the mix, along with two other runners.

Even though none of the sprinters will want a testing clip, the presence of Pablosky (Howard Cheng Yue-tin) in barrier one should ensure there would at least be average speed, as he pushes on to hold a handy position or lead.

Include Access Years, Exciting Dream and Pablosky, but also last-start winner Great Spirit (Karis Teetan).

In the middle leg, the Class Three Wayfoong Centenary Bowl, look to Moore's handy dirt tracker Tianhuang (Moreira) resuming over 1,200m after an early season setback.

Tianhuang was a dominant winner on the dirt late last season and after some impressive work and a trial heading into what would have been his first-up run in September, the four-year-old was found to have a blood abnormality and was withdrawn.

It seems the son of All American is back on track and has trialled twice this Class Three, and will carry just 114 pounds at what will be his third race start.

Moore has requested special permission from stewards to change gear on a last-start winner, placing pacifiers on with cowls, saying the horse resented kickback in his trials.

In that win, Tianhuang left rivals with few excuses, sitting wide and galloping away to win by a comfortable margin, and he gets in this on the limit in a race that doesn't look overly strong.

Zac Purton gets his first ride of the season for the Size stable on Happy Surveys, a horse whose lack of gate speed could see him end up in an awkward position from barrier one.

He still needs to be included, along with Ultimate Glory (Ben So Tik-hung) and Noble Alpha (Nash Rawiller). Keep an eye out for Fight Hero, if Brett Prebble can get him to jump on terms, which is admittedly a big if for a horse that has terrible barrier problems, but he may figure after catching the eye late last start.

In the opening leg, a Class Four over 1,800m, go with Kitaya (Prebble) on the seven-day back-up after he was narrowly defeated last start. Other options are Cartoon Fay Fay (Moreira), Rock The Tree (Richard Fourie) and also look at Diamond Friends (Whyte), back on his favourite surface and up to 1,800m for the first time.