Ok, What have I done now... (904 problem?)

see, im kind of leaning towards this myself, because you said it has been working fine up until you put this kit on. you didnt run it long or hard enough with low fluid to hurt it. and it would seem to me, if the bands or clutches got burned up, the fluid would show signs of this.

The bands and clutches would make that fluid smell NASTY burned if this was the case.

AND I'd use a straw to suck the oil out of my engine mouthfull at a time to change my oil before I'd watch Dancing with the stars.