I've just seen this post (3 years after the original!) but my father was in the Admiral Towers scheme between Dec 1943 and July 1944 where he did his pilot training starting in Stearman's, then Harvards and finally to Catalinas. He then moved to the Middle East with Coastal Command (again on Catalinas) until the end of the war. I am trying to find out more about his training which appears to have included a fair amount of flying at Grosse Ile (near Michagan) and Moncton in Canada with his in addition to his main training at Pensacola.