a heavyweight and lightweight?
probably you have already managed to establish that lightweight is probably free plotline with light story while heavywight is probably free plotline with deep story... probably I say if those are how it stands I'd say probably it would wind up with basic rules like no spam, no god mode, no unlimited resources, and no favorism... probably it would be harder for the person who started the story to role play in their own rpg if they make them heavy weight or light weight because they've got more things to mess with like how the people act and towns and so on and so forth... it probably would wind up being only those who have good creativity and really like to make up stories would probably do heavyweight or lightweight...