Depends on how you manage the swings. Some folk are so good at putting up with variance that they can take shots with 15 buyins or even less. Most of us aren't that good though.

20 buyins is a good point to move back down I suppose. If you have 1100 you could maybe take a 3 or 4 buyin shot and if you lose that, go down. I think that's what I did, I definitely remember playing 50nl at one point with less than 1k.

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