depends if u want ultimate grip or you care about replacing your tires every 15000 ks haha, from what i know the grippiest stuff ive used are the new Continental CSC2 they are damn soft, and mathews tyres sell the marangoni zeta lineas, which are a italian boutique tyre, even more grippy, they are pricey though, but boy do they stick when they are hot. P-zero neros are ok, not that sticky, pilot sport 2s arent bad either