THERE simply can't be any excuse for astute local handler Wong Tang-ping not having a vintage campaign - given the amount of ammunition at his disposal. A couple of Wong's team caught the eye during Tuesday's Sha Tin trials and it was much the same story, though written somewhat larger, at a depleted trial session at the sodden New Territories' venue yesterday morning. In Polar Star, Wong has a private purchase griffin from last season that is surely going to make a big impact from his current rating of 67 at the top of Class Three. He was a runaway winner from Amazing Win when pushed up in distance to 1,400 metres for his third start last season and then ran a cracker when third to You Bet and Quick Action when unsuited by a drop back in trip to 1,200 metres for the prestigious Kukri Trophy. He shapes as if a mile or farther is really what he wants this season, though his pedigree suggests no more than a mile, and it is going to be interesting to see if he goes all the way into becoming a Derby contender. He just might. Yesterday he was given a very easy time of it in the first of four trials on the rain-soaked main all-weather surface. Gary Ng Ting-keung's House Honour led all the way, as is his wont, but the horses to note from a betting point of view were all being looked after behind him. Apprentice Ricky C. K. Chung kept Polar Star under a tight hold all the way and sent him out very wide, in order to lose ground, on the bottom bend. Even so, he could stop him running home strongly to the line for a most encouraging fourth. Mount Hansen moved to John Moore at the end of last season and looks worth following very closely. He's become very lazy, bordering on the indolent, in his trackwork and Moore left the blinkers on for yesterday's trial, which he doesn't always do. Under conditions more akin to race day, Mount Hansen showed a lot more zip and could easily have won. Kenny Kam's faithful old servant Conticasta was the only one ridden out at all. He went to the line well for third, followed by Polar Star and then Geoff Lane's Heavily Armed who was kept under a stranglehold from pillar to post and also went well. Wong's Walk Big failed to score in his griffin season last term. When I went searching for his handicap mark my instinct took me straight to Class Four. But he's not there. He's in Class Five. In the old days that would have been a tremendous help. It still is to a degree though those at the bottom of Class Four and the top of Class Five mix freely in their races these days due to the voluntary demotion and promotion initiative. Walk Big is rated 35 after three promising runs and yesterday was the second time he has gone like an almost certain future winner in his trials. He was dragged back to the rear of his field before making up a heap of ground in the straight to run fourth to all-the-way winner Solar Century, who has thrived since moving to David Oughton. Wong's Prince Baikal then put in an emphatic win in the three-runner final heat. Successful Way most definitely looked the horse to follow from the second trial won by Derek Cruz's Lucky Glory. First trial: 1, HOUSE HONOUR (D. Holland); 2, Mount Hansen (B. York); 3, Conticasta (E. Legrix). Others (in finishing order): Polar Star, Heavily Armed, Al Bundy, Classic Warrior. Time: 1.03.9 (24.1). Distances: 1/2 length, 21/2 lengths. Winner trained by Gary Ng Ting-keung. Second trial: 1, LUCKY GLORY (A. S. Cruz); 2, Successful Way (D. Holland); 3, Fortune World (K. H. Ting). Others: Privy Council, Winford, Source Of Life, River Serein. Time: 1.04.6 (23.8). Distances: neck, 5 lengths. Winner trained by Derek Cruz. Third trial: 1, SOLAR CENTURY (L. F. Chung); 2, Rare View (W. M. Lai); 3, Success (C. K. Chung). Others: Walk Big, Multi-Colours, A Fortune, Lickety Split, Ibis. Time: 1.06.3 (25.3). Distances: neck, 1 length. Winner trained by David Oughton. Fourth trial: 1, PRINCE BAIKAL (D. Holland); 2, Classic Turbo (A. S. Cruz); 3, American Eagle (W. H. Tse). Time: 1.03.9 (23.9). Distances: 3 lengths, 31/2 lengths. Winner trained by Wong Tang-ping.