We have several cars where we have used mulit set screws at different angles to adjust camber and toe.
I believe Fred Wheeler was the first to use to do it, I kind of copied his concept and added several at different angles both top and botom of the car(Fred prob had several too, he was one sly cat)because of my vast experience in automotive alignment I used the multiples to to induce different degrees of angles.
The "GRX" is the WORLDS fastest car! Now if I could just find that secret speed spray!!!