THINK Tank put in one of the day's most impressive performances when taking the second event in a canter by two lengths from the consistent Sunningdale. Think Tank's form was on the board going into the Class Four sprint down the straight 1,000 metres as he had beaten Namjong on his only previous outing and Namjong has since made his way to Class Two. But that was back in mid-October and Think Tank had been off the course since then due to a virus-interrupted campaign which left trainer David Hill concerned about his three-year-old's fitness for yesterday's race but not about his sheer class. Hill said: ''I thought he could win on his sheer ability but I knew it would have to be on that alone as he was by no means fully wound up for this. ''He has had his fair share of training problems, including the virus quite badly, since he won so well first time up and I have been very easy in the mornings on him for obvious reasons. ''He could be a very good sort next season and I wasn't going to rush him for the sake of one race when he has his whole future at stake. ''By the same token I'm pleased to get another run into him as it is all part of his racing education and they have to learn from their Class Four experiences if they are going to win in Class Three.'' As it turned out, Think Tank was never going to be beaten. He was simply cruising from the moment the gates burst open. It was only a question of when jockey Basil Marcus was going to let go. He chose to let Think Tank stride to the front passing the 200-metre pole. From there Think Tank pulled clear of Sunningdale before tiring close to home as his lack of a recent run began to take its toll. There is going to be considerably more from Think Tank next season.