"I saw a lot of hysteresis on raw data graph i.e. for IA=4? tests pass trough SA=0 four times and 2 curves indicates a lot of FY+ and the 2 others indicate approximately 0."
All of the curves pass through zero four times. That's how the tests are run, watch the test videos. They pass each tire through zero four times in order to get as much data as possible in that area, so they can approximate the cornering stiffness as accurately as possible.
As for the problems with the Goodyear tire I agree with you that its camber response doesn't seem right. MRA is aware of the problems and have scheduled time to fix them.
I hope that helps.