Big downswings and big upswings are both much less frequent which means that your win rate will stay within a narrower range overall and for the most part you need much fewer hands played to have a high level of confidence in your true win rate.
If you add in the "luck factor" in your "all in" hands, I think you can get an amazingly good idea of your true win rate even after just 2-4000 hands.
Update...
I do have about $1500 too much profit this month according to pokerEV but even after adjustment, Im at 3.34 PTBBs for the month Statistics: Posted by iceman5 — Sat Aug 11, 2007 7:27 am
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