One interesting thing I have found is that when playing the $100NL tables, the pots are much smaller. I don't mean by $$ amounts since it's $100NL vs $200NL, but by BB's. With more action on the flop like C/R and raising of C bets the turn betting is always inflated and most times your stack is threatened by the river holding TPTK type hands. It really requires a slightly bigger set of balls, but it's all part of the growing process. From what I hear and read they need to change to brass by $600NL