Life In 19x19

I want to offer next rating system:

- Each player has "personal rating";
- Each player has "league rating"
- Personal rating changes every game and reflects that players strenght (such as EGR);
- League rating resets to 0 every month and reflects current month league progress (instead of w/l ratio ...

I think, it is better to remove all cash prizes in groups E-B because a main target of players of these groups is improvement of the game and transition in high groups.
As to group A it is better to discuss rules with players of this group, but for first four places in group A prizes are necessary.