Maybe set a point level that you have to reach to qualify for the championship race. Instead of having to have 10 locals and 3 qualifiers, make it 4 qualifiers and 6 locals with a certain amount of points to qualify for the championship race. That would take away the coasting at the races.
Also why cant every qualifier and the championship be run like a national. Every class have a main and give main points along with moto points.