I kinda walked this fight. >_>; I must have spent a buttload more time fighting things while doing random sidequests (pre-final-boss) than most people did. xD But yeah, I think I beat them in about 20 minutes... at a guess, though. Might have been ten, might have been 30! But I only had to kill each of the side-dragons three times to kill the Jet Bahamut.