Pour moi, a Tale of Two Cities - first go at 10NL = crashed and burned.
6k hands, -$85, -13.78bb/100
Not excessively upset about this, $90 of this was getting it in preflop w/ QQ, KK or AK and running into AA or a lucky SOB. But nevertheless, back to 5NL to grind it all back up again
14k hands, +$65, 9.33bb/100 +$10 bonus
All-in-all, breakeven $wise, but +EV learning-wise