Another idea would be to make exceptions for classes that need more representation ingame. Like maybe tks, paladins, bladedancers, shit like this. Make it like an event or something. For example during a span of one week, class changes will be accepted for 4th category classes (like phantom ranger) to reroll to some 2nd category classes (the ones you actually want to see more ingame, not every 2nd category classes). I don't know really, it could be a bad idea too, just throwing some ideas for you guys to consider.