I should resurrect this campaign and carry on, but I got a bit bored sailing around in circles in the far north as Hipper. He should be recalled I think in any case and Sheer's plan to destroy the Dover Monitors put in motion.
That was purely for the raiding sorties... not at all historical as you say. I don't know that it was much use... it just limited the BCs range. I have since done a game with just the BCs in pairs and that was... fun... Though once the GF finds you there's an awful lot of running away to do.By the way I really did like your idea of just keeping the dozen or so 'long range TB/DD' with the Scouting Force.