tapping my chin, thinking How about this:

passed- hits for full hypnotic suggestion. Minor persuasion (ex: "oh you aren't fat, you're actually really thin! Everything else is just my size is all!") can last easily from six to ten hours. Major persuasion (ex: "no no, you're hungry still. In fact, I bet you will still feel like that until you eat those four hundred burgers") lasts roughly up to only five hours (modifiers do not stack).

missed- missed checks have an unknown lasting effect. Only successful Bluff checks can determine if the convincing lie will last from an hour to three (four counting any buffs/modifiers). If caster uses the phrase "You are a tiger, and tigers love to eat a TON meatball sandwiches", then either the breed or fact of eating that food will be questioned in the target's mind. Anything too unbelievable will not be able to work, as the CR will be too high to pass and will fail (just only linger in their mind as they doubt, dropping the believably level after every Will check pass). Upside is even if missed, this works much like a second Glamour encounter power. Rolling for max strength hypnosis before stating your enchanted words allows you to think of a more believable lie~

critical hit- the line of sight spell is bumped up to full Bluff check pass, and works as a freebie wish spell. If the caster says "Why, I think you're starting to grow, like the air itself is full of calories...", and passes critically, then the target will not only believe the statement, but will in fact begin to act as though the air they breath are packed full of calories and will grow larger (see: biokinesis). The Bluff used will last anywhere from twelve hours to twenty hours. The spell conversion has various lasting times depending on the spell and how believable the lie was in the first place (for instance, asking them if they outgrow whatever gets put on them will last nearly all day in both belief and spell, but telling them they are actually a pooltoy and didn't know until now will only turn them into a pooltoy for around 13-15 hours, and they have a chance (though LOW) to beat a Bluff check and become aware of being changed so drastically. Polymorphed status will not revert even if the target realizes they really weren't what they were called).

dear god I'm flooding your submission with game-like dork talk D= SORRY!