All F1 series at PRL start the same week and finish the same week as well. Why are we doing that? Management purpose. It takes a lot and a lot of time to create and prepare a championship and by making all championships to start the same week, it's way easier to manage. Also, that way we are very structured and look professional. Look at the F1 20xx forum to see all championships we support and you'll understand.
We have tried in the past to built custom schedule, and not following official schedule, and it's not popular unfortunately. This is why we have taken the decision that when a new F1 game comes out, we are ALWAYS following the official F1 calendar.
People playing F1 20xx are very authentic and want as much as possible to reflect the reality of F1. We have made a poll all across PRL about changing the points system so more drivers can score point, and it was not convincing enough to apply the solution.
Always keep in mind guys that we have more than five F1 2017 championship to organise and manage. To avoid any mistake and to save us time, we are managing them the same way. Each managers and directors put more than 20 hours a week to make it possible. So I want to keep everything as easiest as possible for them.