Contrary to popular belief, not all extreme tyres have no grip in the rain..... I've used Hankook RS3, RSR, AD07, AD08R all in the rain on different platforms and I don't really see any issue with grip. But granted - I wasn't driving like a mad-man in the rain, just normal road speeds like 70-80km/h max 100km/h. Braking and grip no issue and no aquaplaning unlike the rubbish GY NCT5 (which isn't an extreme tyre I know). Main problem with extreme tyres is the wear is stupidly high only and won't last you max a year on the road.