But that was to be expected. Overall, handing is excellent. The ride is more comfortable than the A001Rs, nice and quiet, yet the sidewall stiffness is 'ok'. Dry pavement breakaway is smooth. The tires do start to slide before the A001Rs would have, but that was expected.
Wet performance is very good.
Much better than the A001Rs in terms of resistance to hydroplaning. Overall, I'd say this is a superb summer street tire where wet performance, noise, and steering effort are considerations. In my case, my fiancee could not turn the wheel at 0mph when then A001Rs were on the car. Not a problem with the A510s. This is a performance tire but it is definitely made for the street and it behaves accordingly.