The first time I ever ran with 200tw autocross tires I was running the 7/8 front bar and an Adcco 5/8 rear bar and I was pleased with the increased grip over the street tires, then on the last run I decided to see how it would behave with the rear bar disconnected. The back end seemed to have more grip. There was more body movement through the slalom but the back end stuck.Seems like you have alot more roll in comparison ... Better track times with the rear sway bars omitted?
I actually think the optimal setup would have a light rear bar and a heavier front bar than the 7/8 bar. I also think that reducing the rear roll center will help prevent unloading the inside rear wheel so much, and reduce overloading on the outside front wheel at the same time.