I agree with what Dom said – I had a chat the other day with a few affiliates about whether “rakeback” would work in casino and they offered me a good reason why it wouldn’d and I can’t for the life of me remember why – Will have a think and try and remember –
Good luck though, I like the idea – You are already on the right path trying to offer something that is unqiue and isn’t simply a standard casino reveiw site