Actually in wet conditions, which it is up here in Seattle for at least 6 months out of the year, I deflate my tires about 5-10 psi to allow for more grab on the road. Of course cornering can be a bit tricky and wet leaves will most certainly lead to flailing but will some practice you get used to it.

I'd say the worse part is when we have our first frost and the sanding starts. Then the perpetual cleaning begins and trashing of components..... I too envy the RIV.