I would suggest to add the compounds you can use for each track (maximum and minimum) (ex: SS, S for Melbourne ).
Right now Hard Tiers are so Overpowered and in most circuits if you use them you have a big advantage no matter the strategy you use.
It could be a bar in the Advanced Options of the League Leader Panel with all the tracks and a maximum of 2-3 compounds per car allowed.
If we have a selected compounds for each track the races would be much more interesting imo.