Hmmm... S9 code on the Bf110s. -> Erprobungsgruppe 210, later Schnellkampfgeschwader 210, Zerstörergeschwader 1
http://forum.1cpublishing.eu/showthread.php?t=18046 You've looked at that tread mr. Maddox or is it coincidence that the code S9 is on the Bf110s?
http://users.hol.gr/~nowi/ Nice website for Luftwaffe codes