[hockeyav]

There's no specific rule stating that you need exactly four times the buy in for bankroll management. Obviously if you're playing hyper aggressive, pushing once per orbit you're going to need more than just 3 rebuys. It's a matter of personal preference, and willingness to gamble. 4x the buy in is just a general starting point for most.

If you're paying more/less than 4x the buy in take that into account when figuring your bankroll management plan.