[punter11235]

Imo any bankroll requirements doesnt make any sense.
Its all about risk tolerance and honest assessment of one abilities.
In today environment one can play 6+tables and get 50xbuyin bankroll at any stakse in no time - IF one beats lower stakes. You only need "bankrol requirements" when you try another level and the only thing which is useful to decide if you should take that shot is your tolerance for risk.
I dont see how general tips may help.

What would be helpful is some tables with calculated probabilities of going on X buyin downswing before winning say 20xbuyin with given WR and std dev so everybody can choose his/her own risk tolerance.