James Greermedal 5000 9 years 18 days ago(edited 9 years 18 days ago)
:) I had in mind Gearing & Tyre Pressure. With a slight sting in the tail, each tyre would have it's own pressure based on the temp, so using more than 1 compound in practice could upset settings. Would also mean the pressure setting would be different every race even on the same track.