Something doesn't sound right with your tyres Maniac.
What date codes are on the tyres?
Where is the car stored?
What pressures are you running?
I have used them before and don't have a bad word to say about them in the dry, in wet and damp conditions they were good but I have used better tyres.
Bridgestone runflats were worse for everything though, dry grip, wet grip, comfort etc so something doesn't sound right.