Not sure if it is because my front GT II is not an "A Spec" (stupid dealer)…but I am not fully happy with my pair. The front A-Spec has a different pattern than the non-A-Spec, similar to the rear, and has a dual compound.
I just went on 2 trips since installing them, ~ 2000 miles, and even though they are a nice cornering tire, they are horrible on any type of grooved pavement. The bike sways left and right pretty harshly. Draw bridges are not fun either (yes, I cross them at an angle). My Michelin PR4s were never affected like this.
— Never cross a "bridge", without checkin' out the view! - me
— Life is too short to drive an ugly car. -me