Or not change at all - I ran the Civic on 3 sets of SH fronts and a single set of SS rears.
Nevertheless, he made one stop and ran a 1.3s quicker lap in the race than on the "ideal" during qualy. That's one hell of an improvement.
I know I am a comparative tyre-rapist, but there's no way I could have run more than 6 laps with Strong tyre wear and SS fronts on either car even if I'd gone with the wheel (where I'm almost as saintly to rubber as daan).