My Dad flew Harvards, in the immediate post-war period, from Feltwell. In fact he appears in the group photograph on the above mentioned web site. This picture is also included in his self-penned autobiography, concerning his wartime service, flight training in Texas, and subsequent service on Yorks with both 51 and 511 Squadrons. His book also has pictures of 3 FTS Harvards, which appear to be yellow overall, with early post-war roundels and flashes, and 4 letter codes, in particular an FT*** numbered aircraft with the codes FBR-G.
He also mentions the cropping of the Harvards propeller tips, in order to reduce the noise the aircraft makes, with pictures to show the different sizes.
I can quote from his book, if any further information can be of help.
Cabbage