Have you added the dogbone bush?Traction in the wet is good once you are rolling. Off the line and harsh low speed acceleration isn't brilliant, and you do get wheel hop and wheel spin. But that would happen with any brand of tyre I think. Once you are in 3rd you can be as aggressive with the throttle as you like and they will grip, even in the wet.
I dont think better tyres exist that would solve these issues. Premium models from Goodyear / Continental / Michelin are all equally good in my opinion.