Hi Rob,
well the I/JG27 had a few planes with chewron at this time. They were: <, <A, <T, <^ and of course << of Hpt.Eduard Neumann. To the staff belonged also Lt.Ludwig Franzisket, Lt.Friedrich-W.Borchert and Olt.Josef Unterberger (perhaps someone else?). I think that Franzisket used <A and there is a photo of his plane with 16 black victory bars taken in April 1941 (published in Jagdwaffe Colors Vol.3/3).
Regards
Robert