i use yojimbo alot, and i ave notest that he does more often zanmato (on strong enemies like d-aeons) when i let him have funky numbers like...11,111 or 66,666 or i give him as much so that the last 4-5 numbers are at 0 of the gil i will have left, or on weaker fiends when i give him the amount of gil i got fro the last fight.
i know that is just luck or something, but for that it kinda works alot. <img src="/images/graemlins/wink.gif" alt="" />
......