Duane Black
Curbs go brrrppp
Heres a little amateur data... a 10hz external gps and track addict for both of my winning Lightning Lap runs. The 3 second slower lap is on Hankook RS4 (295/40R18) whereas the fast one is a set of discontinued RE71R (275/35R18) you can really see the re71r stand out when the need for a mid corner transition is necessary.