You can try the setup that was posted of Mo's car. I plan to give it a shot. The way I drive,I go deep into the corner and hit the brakes hard. Then on the way out,I get on the throttle early and have the car pull out of the corner. Stock setup didn't allow me to do that. The rear end was just way to happy. To much traction in the rear so my post about searching for rear traction was wrong.
As for your clutch,did you put any thread lock on the screw? A dab of blue thread lock could help.