Electronic Unicorn left a match race fizzing and his trainer John Size with a familiar dilemma as he returned to his very best and scorched away with the Group One Stewards' Cup at Sha Tin yesterday. The Unicorn settled back from his wide gate then produced his dazzling acceleration to loop the field on the circle under Robbie Fradd and surge away from stablemate Dr More, to give Size the feature quinella and part of a treble for the meeting. In doing so, he made amends for what appeared an unlucky second in the Hong Kong Mile for the second year running, winning the first leg of Hong Kong's Triple Crown by almost four lengths - and opening up the debate whether he should run in the Hong Kong Gold Cup (2,000 metres) in March. 'That was an electrifying display,' said Size. 'It's great to see him back to that sort of winning form. The tempo of the race gave him the opportunity to show his sprint, to show just what he can do and he didn't let anyone down. He took the chance.' But the thorny question of the Gold Cup will remain just a question for the time being, despite the ease of the win. Last season, connections elected to tackle the extra distance of the Gold Cup and were left lamenting when Electronic Unicorn failed in a truly-run affair and finished down the course, but the subject won't go away after yesterday's victory. 'It's an optical illusion when you see a horse do that at the end of 1,600 metres. You think he'll run 2,000 for sure, but the extra 400 metres dulls the horse's sprint and he doesn't have the same kick in the straight,' Size said. 'He hasn't run a place in more than a few attempts at 2,000 metres in his career but I'll be guided by how the horse is after this race. I keep an open mind about distances. Maybe he will get 2,000 - one day I guess he probably will - but let's just see how he pulls up after this. 'That's always my approach, I'll leave the decision for as long as possible then see how the horse is doing. If he tells me he is ready to give the Gold Cup a try, then it's possible he may run but I'll let him tell me.' Fradd was in raptures with the win at 1,600 metres yesterday but said the decision on the Gold Cup was not his to make. 'It's up to others - the owner and the trainer - and I want to ride him in anything,' Fradd said. 'But this horse is such a devastating sprinter-miler, I'd love to see him stay at those distances. That turn of acceleration he has, it's possible he might produce it at 2,000 metres, but only if they went a real crawl in the race and the reality is they just don't run those top-grade staying races like that. If he gets a serious tempo, it's going to be hard for him.' The race touted as the return match for the Hong Kong Mile quinella of Electronic Unicorn and Olympic Express never looked like eventuating, with Olympic Express tame in the straight after an easy trail and finishing fourth as Housemaster, raced in the same ownership, touched him off for third. 'I wouldn't say he was so disappointing, he had a nice run and ran a good race but it looks as though Electronic Unicorn has come on from the international race,' said Olympic Express' jockey Weichong Marwing. 'My horse certainly didn't appreciate that slow tempo today. I think he would have been much better suited by a good gallop and he never got it. At least that was a good pointer for him when he goes up to 2,000 metres in the Gold Cup next time.' Owner Larry Yung Chi-kin was not disappointed with Olympic Express, but he was thrilled with the performance of Housemaster, who seems to have put his injury worries behind him and continued his climb back to the top as he came from behind his younger ownermate to take third. 'Housemaster has run a fantastic race and he really needs the 2,000 metres. Maybe he is my Gold Cup horse,' Yung said. Size said Dr More had already shown he can handle 2,000 metres and would press on now to run in the Gold Cup: 'He's done well again, he never runs a bad race and he'll get another chance to win one of these big ones.' Size starred on yesterday's card elsewhere, too, teaming with jockey Shane Dye for a double as Palette Natural became the stable's second 2001 International Sale graduate to win and Gem Of India stepped up from his debut second. Size has opened up a 13-win margin over Tony Cruz in the trainers championship but is not getting carried away with prospects of a second title yet. 'A very long way to go yet,' was his summation. 'But it's nice to see Palette Natural get the reward for his consistency. He tries hard and it was just a matter of things falling into place which they did today. 'And Gem Of India looks like he is going to make the grade. He's got plenty of ability and though he won well at 1,400 metres today, I think he'll be just as hard to run down stepping up to 1,600. He races on the speed and makes his own luck.'