Hi Stuart
I"m playing 25c/50c on Betfair. Sometimes leave table with $150 sometimes with a big fat Z. Think the important thing is to ensure over a period of time that you"re in profit and maybe set a weekly target if you play regularly. I originally started with £50 and played on
/10c table to ensure i had more than 5 buy-ins. After getting to $150 I went to
/20c table and now moved up to 25c/50c a while ago.
I"ve now got $400 in my bankroll and previously withdrew £200 back into my bank. I"m now looking at hitting over $500 to enable me to have a shot at the 50c/$1 table.
There will be times that you just run into big hands/don"t get many good starting hands/play poorly/have an aggressive table (great when you get cards, sucks when you don"t) and you just have to admit defeat and leave the table. If though you"re playing well and feel you"ve got the measure of the table then why leave after making a small profit? By all means leave after at least doubling your buy-in but only when you"re satisfied the timing"s right (length of time at table/tiredness/other issues)
Would also be a good idea to look at some of Monkeyman"s "Am I A Fish" blog as he"s analysed his own cash table play quite a bit.