2 things is popping up in my mind
1. DONT offer rakeback at sites, where you dont have a good coorporation/contact with your affiliate manager, it will waste a loot of your time. Make sure the rakeback is paid automaticly, dont waste you time with work a system should be doing.
2. Finish this sentance, and this is where you gotta go creative, and what defines you as and affiliate "I offer rakeback and .......". So many sites offer rakeback, the big ones are big because they treat there players as kings, and they can offer deals you will never be able to, so dont put your money/heart/efforts in, when youre way behind.
Come up with something unique, and use rakeback as the marketing parameter it is a long with something else to create something unique.
Network rules are
network rules, respect and obey them, dont ever go for offering just 1 % more, or something like that.
Theres a reason people in the bizz are not to crazy about rakeback, it would have killed the business, if some off the bigger sites didnt take a stand against it. Now its working ok, at some networks. Banned by most or changed to VIP, and only slowly killing 1. major
network.
GL with the site, let me know what i come up with for added value if you decide to go with my advice