i think it really depends on how you feel about it, for example i think i play my best poker when i have a large bankroll because im more confindent about my recent play...and yes you might not be as scared to lose. i got introduced to a cash game with my brother inlaw every thursdaynight and i was told to bring in least 300...cuz they play NL holdem all night long. so i brought 200 and ending up cashing out 8 hours later with $1,187 dollars wehn i was only 100 deep for the night and every since then ive been consistant with about half that every week and for me being only 18 im cool with that