MY solution to wet weather grip is to drive a 6000lb vehicle with a high center of gravity. It doesn't matter what wet weather lateral grip is, because I ain't taking that corner at speed no matter what.
In all seriousness, I have no idea how the Michelin A/S on the truck performance in the wet...it hasn't really rained since I put them on, and I don't drive aggressively enough to really find out anyway. These days I value comfort and quietness over outright grip.