Some spots still open
You might need to consider about paying competitive rates to attract and hold participants.
Here is an example from recent things:
A note, I have increased the payout on Senior accounts to 50, per the suggestion of Little Mouse. Solid campaign manager there, also got some advice from yahoo62278 (another solid manager).
I am sure you also might be getting suggestions from campaign managers.
I hope I am not breaching any of your terms by suggesting this. I just wished my favorite casino's campaign to become attractive. Thank you.