is it complete and utter blasphemy to disagree with one point made by the great sheldon brown? im not going off of fancy physics, just personal experience....2 slick tires ive ridden didn't seem that grippy on concrete roads, especially in wet conditions, while more treaded tires ive ridden (like the fyxations with tread on the walls) seemed much more grippy, especially in turns in wet condtions.

perhaps both tire and road material has some factor on tire grip. people say slicks have more grip since there is more surface contact but i would think a treaded tire with grippier tire material would be more grippy than a slick with more slippery material....

the cheapo thickslick i bought has a material that definitely feels more slick while the fyxation i have feels much more....tacky i guess. i dunno