A side thought. I set up the Fairfield regionals this year with a "Gold Class" and a "Silver Class" rather than traditional equipment-based lines. It was clearly stated that the Gold Class would use more ambitious tasking, and it's where I called the Assigned Task (1 out of 4, so only 25%) and a long MAT that was supposed to be just about an Assigned Task (but the weather was actually even better than forecast, so people had more optional time than optimal).
Perhaps that approach in some smaller regionals might be better than having 3 small classes split by span/type? State that the Gold Class will use more ambitious tasking and more ATs.
In Ballieau in France they do 3 classes:
Beginners, Speed and Distance
The beginners class is focused on easy tasks manageable for low experience levels.
The speed class is focused on flying shorter tasks during the best part of the day
The long distance class focuses on doing maximum distance, launching early and landing late.
Of course all classes focus primarily on assigned speed tasks, weather permitting. Area tasks are not particulary popular in Europe.
http://2015.planeur-bailleau.org/ind...al-information