Eight weeks is way overkill if you are multi-tabling 30-70 hours a week and beating the game. You will be up after two weeks over 99% of the time, which is probably as good as the chance you will not get layed off in a month. As long as you can pay your bills with a credit card the first month so your bankroll stays intact, X hardly matters.

The huge assumption in this thread is that you know you are beating the game for $20/hour. Not many people could make that claim after having won their first $500-$1000 playing poker. But if its true, and you have a credit card or two as a buffer, then you are financially better off going pro as long as X is less than your current income. Do you want to? Are you psychologically capable of relying on poker to pay your bills? Can you handle multi-tabling 30-70 hours a week? These are all good questions, but they have nothing to do with the value of X.