Oh.....
Oh.....so the point is to minimize your losses using BS until you hit the WR required to take your money back out.
So when you expect to loose $0.05 on every wager (over the long run) You figure (bonus)-(WR * $0.05)=profit.
Cool, I get it now. Thanks lemonpies, its good to know to start manually tracking my WR before I start.