Updated draft. r TAKA and Gipfelstuermer's suggestions included, Bugatti's not. In my opinion, there are enough tours in the offseason, esp. as there are not many high cat. one day races (little money, little points). No need to add more, the balance worked well in the past.
Maybe someone who's in favor of more tours could do an update of your file to propose a different version with more tours (and times balanced accordingly ofc) ? To see what it would look like and it brings some interest from the calendar planner and not only from some players interested in riding more tours.
I don't have time to do it this week, so if someone wants to, that'd be great

(you can use previous remarks about tours and dates, also propose new adaptations ofc !)