I've just swapped from the factory potenzas to GSD3 F1s. My initial thoughts after about 500mls (standard springs, 34/32 psi).

- tramlining gone, smoother ride
- a lot more feel with turn and grip
- more progressive on loosing grip
- initially not as sharp turn in
- don't feel like massive amount of grip (as people normally say).

as i said hardly any miles yet, but i'd be interested on other peoples thoughts/experiences with this and other tyres on the sti8.

Cheers, Mark.