Thanks for the input so far guys
Richard, I am thinking that perhaps the rear is too stiff. As the front dips (with steering lock on), the rear inside wheel lifts because the outer rear wheel is not compressing enough. If it had more rear roll, the inner wheel would stay in contact longer and the outer wheel would perhaps generate a bit more grip without letting go so quickly. Does that make sense? I was trying to kill a bit of front grip by going up on oil, when softening the rear might have been better. If I am going along the right track, how best to get a bit more rear roll? Add a washer under the inner balljoint, change the top link length, go down 5wt on oil?
My initial setup seems pretty similar to others I have found, and it was good at Newbury indoor earlier in the year. Thats why I'm a bit confused as to why it does this on a higher grip carpet