yes D, we started to go stiffer (red springs in rear) also and this is helping. I'm just surprised no one has mentioned this. That and the clutch seems to be the biggest issues so far and all the guys at our local track in S. Florida are having the same problem. I hear that using the long upper arm position for the rear roll center addresses the problem completely, but I have not had the chance to try this yet!
Thanks for your responses!
Late
Josh