Hutchinson Mosquitos SUCK! They came stock on my Jekyll... and that was the first thing I replaced. Crappy traction and unpredictable. On wet pavement anything is going to be slippery. You'd probably be better off with a semi-slick on wet pavement than anything else. I run a set of Michelin Jet S tires for the hardpack/pavement duties. If you want a good all around set of knobbies I'd get a set of Michelin XLS... great tires that perform EVERYWHERE.
And slow down in those corners man