Nick, Variance is the mother of all evils...
Start reading
http://www.twoplustwo.com ; do a search for variance and standard deviation... also bankroll requirements would be a good start for some reading...
It is suggested in LHE you have 300 X bankroll atleast... so 10/20 you would need atleast $6,000 at least to sustain all swings... Swings and losses of 100 BB's in one day are not at all uncommon for even pro players ... We all run bad time to time no matter how good you are
Not trying to get you to sto playing at all, as you are definately an above average player. Just think you might want to read up on some of this stuff so when the variance kicks in on the low end you are prepared
Oh, and congratulations you lucky SOB!! LOL