I remember this one time in Ravana EX where I kept getting Balances and Spires and just threw them all onto my Black Mage for a total string of 2 minutes worth of Balance. Then I never saw a balance until three runs later. RNG is a mysterious thing.

<I'll reply to Staris in a bit. I need to work at work and not be so excited for FFXIV ;_; inc wall of text?>
EDIT: I wish I could math as well as you all could '-'