I keep a spreadsheet each year where I list almost all of the deposits I've made to on-line casino's and Poker rooms and I include information about any bonuses I receive as well and how big the wagering requirement was etc, all the important details basically.
You might expect that a higher bonus WR would inevitably have a direct correlation with a lower chance of making a withdrawal but that doesn't seem to be the case, especially when I play Dead or Alive with a bonus - if I hit a wildline or five scatters I'll almost certainly manage a withdrawal. I guess that's one of the reasons that game is becoming more and more rare to find available for bonus play
So I'm wondering which games have been most successful for you in beating the bonus WR? NetEnt's "Koi Princess" has been my own game of choice just lately but I've been seeing that on a couple of prohibited games list this month too, so I'd be grateful for some suggestions!