I am trying to see a pattern, if there is one, to the Tyre wear and Fuel consumption values of the various Endurance races of GT League. Do you think there is a logic behind the selection of all these values or they differ just for variety? Some observations : Monza in Gr.1 has 5/5, in Gr.3 3/4 and in Red Bull 3/6. Spa in Gr.1 has 4/6 and in Red Bull 3/5. Long tracks (Sarthe, Sainte-Croix) may have 3/8 but also 5/4. Medium tracks (Mount Panorama, Spa) may have 3/5 but also 4/6 or 3/5. 3/4 doesn't exist in fast classes (Red Bull and Gr.1) but 3/6, 3/7, 3/8 are common. In the slowest car (Porsche) races, there are not 4/6 ,5/4, 4/7, 5/5. Tyre consumption value tends to be higher in fast classes (Red Bull and Gr.1). What do you think?