Never had a problem with my Toyo T1's or T1-r's that i now have on the Saph. They are a pretty good road tyre compared to some of the others i have tired.

Agree with Si about them being unless for track tyres unless its wet and then there alright as wont get to hot. I ran a set of T1's on my Integra as just wanted a set of winter tyres, i ended up using them on a Dry trackday Totally ripped the outside edges of tread on and melted and deformed the centres even worse than is shown in Si's picture.