I don't get why you would want to move money out of your betting bank unless you are not confident in your methods.

If you are confident in your methods then your bank will continue to grow. If it continues to grow then you can bet larger amounts up to a point. When you hit that point then 12K profits in a day are possible. But it won't be possible if you keep reducing your betting bank.

I have grown from modest amounts to betting $XX,XXX,XXX per year in turnover because I never took money out of my betting bank until it was large enough to cause me problems getting money on.

I am yet to find a more profitable place to put my money then backing my own systems.