PROGRESSIVE Gladstonian strikes the track he likes and a distance that suits as he bids to show that a rise in class won't bring his winning ways to an end at Happy Valley tonight. The David Hill-trained youngster is aiming for his third win in four starts - no mean achievement if he succeeds - and must again combat a bad barrier draw. Hill has placed his faith in stable claimer Raymond S. M. Tam who rode an impeccable race on the Irish-bred four-year-old last time to win in Class Five. The bare form would suggest that this assignment might be too much for Gladstonian as he only prevailed by a neck from Berkut, whose overall form is very ordinary. But they did come well clear of the third horse and it was a race that Gladstonian was always going to win albeit the official margin suggests it was very close. There can be no disputing that this 12-runner, 1,800-metre Class Four event is definitely tougher but, having said that, there is still not a great deal of depth to the race. Two horses stand out as enormous threats to Gladstonian - last-start winner Stellar Express and dangerously placed topweight, Iron Horse. Stellar Express showed the proverbial clean pair of heels last time when easily accounting for a Class Four field over 1,600 metres. It was an excellent win and claimer Stanley K. M. Chin never looked in the remotest of danger at any stage. But the Kaapstad three-year-old now steps up in distance and there must be a question mark over just how strongly Stellar Express would run it out. But he will be very handy throughout and could well be suited by the city track. Although a doubt exists,it would be foolhardy to leave him out of calculations. Iron Horse and regular partner Jimmy K. H. Ting tackle Class Four company for the first time this season and the horse has really come to himself in recent weeks. Iron Horse ran a decent race at his last start in much stiffer company and should be kept safe here. If Iron Horse fails tonight, don't write him off. He has not won over 1,800 metres at the Valley and is another who might be slightly suspect at the trip. But he will be a good thing over a mile at Sha Tin in this company. The one horse who will relish the trip - and the track - is Gladstonian. Despite the rise in class and the draw, he's still the one to be on.