I had them on a GSX-R1000 and they were "ok".. they want you to run very high air pressure since they are such a soft compound, so they feel a kind of Hard...
decent street tire... they took a bit to heat up and in all honestly they felt a little numb in the front on the brakes when on the track but as a street tire at a moderate to light aggressive pace they did well enough
I just bought a pair of these, I returned the front as it was a recall item, I kept the rear for now, and at some point next season I will buy another new production front. To keep me on the road for now I bought another set of SC's