The Eduard Spitfire HF.VIII Weekend Edition has transfers for JF364 GZ-N of 32 Sq.  There are also the often-seen photos of JF404 GZ-M.  These have raised a nagging doubt in my mind.  Eduard depict JF364 with narrow cannon bulges.  These are quite early Spitfire VIIIs: should they have the wider cannon bulges or did all Mark VIIIs from the start of production have narrow ones?    Thanks in advance.