Dunlop Sport Z1 Star Spec, HANDS DOWN. The RS-2 has too much water siping and loses dry traction because of this. Trust me, I've been through a LOT of tires and As far as the best Daily/Track tires you will find the Dunlop Sport Z1 Star Spec will not be beat IMO. Check the reviews, they'll back it up. http://www.tirerack.com/tires/tests...e=Dunlop&tireModel=Direzza+Sport+Z1+Star+Spec I will never use ANY other tires so long as they make these.