Hello,
tears flowed …
Anger was kindled …
Sleepless nights …
Contention on both sides …
This is in many cases the result of CPA.
Why?
Because both sides can win on the long run at the same time.
Losing players too little, then the casino is the fool.
Losing players too much, then the webmaster has acted with lemons.
No, thank you! 
Who wants to work in peace as a casino webmaster should enjoy in my opinion solely on the revenue share.
Leopold