bankroll question

[levAA]

I play mainly MTT but because of time-lack (unfortunately i'm not yet able to live from my poker-income) i plan to play more STT in the next time.

My question regards the bankroll asessments therefore. I'm used to have a bankroll of about 60-100xBuyIn for the MTT. I read the FAQ for STT and there its

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However, it is preferable to only move up once you have 100 buyins at a given level so if you DO happen to go on a bad run, you won't have to move down to recover.

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As you must me much more often ITM at STT i don't understand this high quotage.

How do you guys handle this - do you play with 100xBuyIn or less (or even more)?

Thank you for replies.