Frog
My Skorpion Traveller wore out its stock racing Metzeler rear tire pretty quickly, as they all will. Big thumpers wear out rear tires pretty quickly because the series of micropulses worms them away....especially at low RPMs.
In any case, a friend of mine is starting to carry Shinko Tires...Korea's new tire entry. He offered me a tremendous deal, I bought it, and it is working out pretty well. It grips, corners,and stops to my satisfaction, and seems to be wearing much better than the original.
I don't know if they are yet available in the UK, but you might look into them. The quality is high.
As for track time...I can't say, but it is certainly a sporty touring tire.
