Don't like em. I wasn't any faster than I was on more street-oriented S22s, and they felt great but wore ridiculously fast. Like, 1 day on a 750 and the rear is just about trashed. I've been through almost half a dozen (I got them really cheap on rebate) and still can't keep the rears from eating themselves up with my riding style. This was running warmers and mid-advanced (not full attack) pace on a low-grip track. Front seems to be holding up better, and feels fine and wears fine. I think they're supposed to compete with the Q4 and other streetable but really track-focused tires.
It's hard to find a 'bad' TD tire now-a-days. I've gone through a couple sets of S22's and RS11's with the EBR 1190 but that torquey thing eats rear tires of any brand, daily, so I can't say they lasted better or worse than each other, but I can say they stick really, really well.
