A friend of mine uses a spreadsheet program to calculate the exact number.
It has always been within 10% of the estimate I use, usually much closer,
checking a variety of games. As I said, that's good enough for me to approximate
risk.
BTW, if you are PartTimeVP, that would make me FullTimeVP! 
Brian
路路路
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In a message dated 8/22/2005 4:19:54 PM Pacific Standard Time,
PartTimeVP@hotmail.com writes:
And how would you know if they are within 10% of the actual number? What if
they are off by a factor of 2 or 3, is that still acceptable to you? For
some of the numbers that players toss around, it's likely that bankroll
requirement calculations for a particular ROR threshold based solely on
expectation and variance are off by that much or more.
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