As far as the Typhoon is concerned, it is a while since I exchanged mails with David and at the time he was having computer problems, but as I recall he did not seem aware that he was supposed to be doing anything with the wings - I expect he will tell us if that is wrong. When IM painted his Typhoons a year or so ago I seem to remember he had problems with the wings and somebody - either John or yourself fixed them, but you will need to talk to him about that. As far as I am aware the only changes needed are the cockpit of course, and optional unfaired 20mm cannon for the earlier version, if that is possible (like the ones on the Hurricane IIb that Mike has been painting for DAW). Of course if you really want you could take the cannon off completely and do the Mk1a with 12 mg and perhaps even do the even earlier version with the metal rear cockpit fairing the pilots hated due to lack of rear view. Then there is the Tornado with the twin rows of exhausts each side and the unreliable Vulture engine. I guess it all depends on having the right FM available.
With increasing age should come wisdom and tolerance, but as the saying goes, "there is no fool like an old fool" as I prove regularly!