where i live the roads are made mostly of concrete, it gets really slippery when wet and ive had my bike dissappear from under me even on relatively slow cornerings on my cheap, made in thailand 25c road tires. i also get flats. i am seriously looking at getting some armadillos or shawble marathons in 32c size.. waddaya tink?
oh, and ask me about my experience trying to slow my fixie down while descending a steep concrete incline in the drizzling rain....