The photo below is a brand new Pirelli Supercorsa (SC2), after only 2 sessions at P.I. This exact same tyre wear was evident on the previous Metzler Racetek's, so it's fair to assume it's not the tyre. The new surface is extremely abrasive (incredibly grippy), but that would explain increase in tyre wear...NOT the type of tyre wear, which is the thing that has me baffled. I've never seen anything remotely like this before. The tyre was warmed up over a medium paced lap before I got stuck into it, and as the previous tyres were run on a 35C day, and these were on a 22C day, I am thinking that temps is not the issue. Of main concern is the the way parts of the tyre have been warn down below other sections of the tyre, leaving a depression in the surface, and the fact that some of the tyre is not warn at all!...Like it never touched the surface. Cold tearing came to mind, but the different conditions listed above, I thought, would discount that as a possible reason. I was told by a regular that it is probably the traction control kicking in and out, but I switched that off, and noticed no difference apart from sliding around more Any thoughts?