Rob, Bob Dancer is willing to accept this challenge from any casino. I've already discussed it with him on vpFREE.

They give him $25 denom 9/6 Jacks with 1% cashback.
He will place his bankroll in the cage and play with vouchers everyday.
All money, including cashback to be placed back at the cage when each day's session has ended.
The challenge will last for 1,000,000 hands.
A surveillance camera will be placed on him while he is playing.

Rob, with your connections in the casino industry I'm sure you can arrange such a challenge. You can finally prove Dancer a fraud.