Well... usually i put the max... but this season the max is 6M.. and have not a lot of budget... that's why, I decided put the bonus, only against the better team of my CL group, the other 2 teams, without (because I'm the better in Quality of my CL) ..in Cup, always, because there are good prizes and now I wannna try to be in the final, so max. prize per victory.
In league, only against the 3-4 better teams I put the max. ...against the 9th to 14th I play without and the other teams depending of how I see the situation.
One have to learn to play with the bonus... I think to avoid surprises one need this :'D