For me the Sparv's were a little much, as were the Sunderlands.
I used to play a sort of campaign style game, mixing Axis and Allies 1941 and War at Sea, with the same unit restrictions. Of course, the only PBs I had were Betty's, an Airone, and a Ju-88, which was a little more moderated. (I also added Avengers and Fi-167s to fill in the gaps). I also gave units double hull points, which also made the actions more feisty.
University Student— Lover of Plato, Aristotle, War At Sea, Palestrina, and Mozart