Finally some track time with my tc4 and wow What a difference .5 degrees makes. When I got my FT TC4 the guy before me had the circle block in the front of the rear arm mounts instead of the Square to 1) remove Toe in from 2.5 to 2 degrees (With the 2.5 degree mount) and to widen the rear of the car a little to reduce traction.
Now With VTA rear traction is lots less due to the tires and the widened track width compared to the front.
So going to the Square block with the 2.5 degree X block really locked in the rear but I was still not satisfied and wanted to remove traction from the front as I was still traction rolling. So I grabed a set of 4mm hexes for the rear and 6mm hexes for the front and BAM! the Car was on Rails. Even went so far as to raise the Roll Center to try and make the car transition side to side faster and Gained .3/lap from my old setup. I could dive in harder in the corners without the fear of rolling.