Well, finally back together with new filter and bands adjusted per the FSM and took it to work today. It's still got a little bit of a whine on acceleration which is louder when it's cold, (was ~ 9 degrees when I left this AM), but quiets some after getting to operating temperature. Barely noticeable at steady cruising, so that's a significant improvement. It also seems to shift a bit smoother, so overall I'd say it was worth the effort.
Thanks for the input, all.
Mike