Each effect lasts for 5 minutes but can be overwritten with another roll (think Bard songs). You cannot however, have two instances of the same roll going at once.
Also, if you bust on a roll (i.e. Double-up until your total exceeds 11), the bust effect will last for 5 minutes after the Double-up that caused it. You can only have one roll active (per Corsair) while you have the Bust effect.
When you bust, everyone in the party loses the beneficial effect of the roll and the Corsair that rolls it gains a negative effect (e.g. busting on a Corsair's Roll with cause you to gain less exp than you normally would).
If you bust on a particular roll (e.g. Corsair's Roll), you can use the same roll again to receive its effects, but beware because you can Bust twice.
>.>;; Whoops... didn't really mean to get into a comprehensive guide... ^^;;
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