[Dangeresque]

Well, basically. It's called the Kelly Criterion, which is based on expectation and standard deviation, however I've too few brain cells left right now to explain that. But, I've heard, as a more secure roll, 550BB and 40BI and I rather prefer those numbers. If you're playing solid winning poker it would take some sort of fourth order standard deviation to punish you that horribly, and normally you would move down at that point.