Thanks gents, I appreciate the responses, 200-B it is! The Panther tank family is the only German type that I would have this question about, as it seems to be a "tweener'. While it was classified a medium by Germany at 45-ish tons, vehicles in the same approximate weight class were considered "heavy" by the Americans (M26) and the Soviets (IS-2).
Adding some clarifying information to the rules is something that I also think would be beneficial.
Rick