hey mizike, my general rule of thumb is 10% for a quality reduced juice shop and 20% for all others. WWTS, Betjamaica, Betongames are great places with 20% at full juice, but offer specials thruout the week
hollywood and pinnacle offer 10%, and II offers no bonus but the savings overall make it one of the best.
keep this in mind tho, the bonuses generally dont get the book in trouble when they are in the range i quoted above, it is what they have to pay the agents who sends them customers. find out what a book has to pay sites like the prescription when they send a customer over thru a link.
a terrible organization like royal sports pays the presciption 25% of all affiliate losses. so when you have to send an outside company 25% of your profits just for them to keep sending you losers, you know you have a book that is in serious trouble.
so if you want to help make sure your book stays in good financial heath, never sign up thru a link at any website. go their directly and you are helping assure the company's future.
good luck with everything