Roman
I ran Maxton some time ago with a turbo Merkur XR4Ti. For the time being my record of almost 175 MPH stands. (we only rent them)
Michelin/BF Goodrich was a sponsor back then and provided ZR1 tires, which were deemed safe. (shaved).
They WOULD NOT consider my using a radial drag/street drag or any type of Drag tire for standing start 1 mile. The folks I was talking to at the time were the engineering community that knows the capability of their product. Admittedly engineers are the most conservative group of people but based on all they said, I would not run drag tires that distance.
I have no idea what ECTA will allow you to do. That is up to Joe and Keith to decide, but I wouldn't run them. I think you would be better off with a high speed street tire shaved to min tread.
Rick