I got the simplest answer that will make you the #1 Sportsbook in the world
Offer % of all action, win or lose
Do that and you are the man
Example
You take 10% of all juice, but only if you offer things like big money contests or good player loyalty program, etc…if you dont, you gotta take less juice on your action
My player, lets say bets an average of $100 a day, i get 0.05% of all action, that is $5 on every $100 i get, assuming he maintains that pace for the entire month, that is $150 i get, which is very reasonable
This encourages me to send you winners, and allows me to feel good about my earnings
And since your job is to balance the books and take your money from the juice, it is safe, if you do your job right, you cant lose, and most importantly, i cant make $0 from sending you a quality player, i get money no matter what, not just you, that is much more appropriate from a business standpoint
Somebody will do it eventually and they will cash in large, believe me