Remember, Elementals originally only needed 10 damage to die (and the rules could be read to imply any "overkill" transferred to another suit as well, thought I don't think that was intended). It was changed to 11 points a few years later.
They called me crazy…they called me insane…THEY CALLED ME LOONEY!! and boy, were they right.
there's a story it was intended to be 10, but the box with the number (or man, I don't recall) in it confused people, then FASA ran with it.