Payouts should differ and be separated in different lobbies. Perfectly balanced setups, as Andrea or SMGS had been comped few times in training lobby and became townsided because of incompetent scums.
I do know that training competition is now shut down but it might (and I'm postitive it will some day) be back. The reasonable option is to separate setup's payouts and statistics.
Bronto - talk to Lucid about that, I don't know if it's difficult to code (I suppose it's not), just ask him about it. Please.