Stik, continuing to look good, and am impressed to the extra lengths you're taking to add details from the spares bin.
Asking, for myself and anyone else that is interested, but can you share the book that indicates use of Italian aircraft paints? The notion is not new to me, but I've never seen it in actual print, so it may be a book that needs to be added to the library. My shelf reference isn't vast, but pictured below is what I have:
The Squadron publication that contains a variety of Italian armour, does make a brief mention of Regia Aeronautica. The author, Nicola Picola, indicates the air force in 1939 NAfrica was already using a sand coloured paint on their vehicles - for me the interpretation here is unclear. Are vehicles only the wheeled and tracked type as employed by the Royal Italian Air Force, or does this include aircraft too? Anyhow, there is no mention of aircraft paints by their direct name.
Here is something fun, I've taken the FS approximations of the four types of Yellow Camou (Giallo Mimetico), from the Stormo site, and superimposed FS20260 on top for comparison. This central swatch is suppose to be the official colour arrived in March 1941, though another source states February. Osprey's recent publication on Italian light tanks further states the colour was only made available to factories in November of that year. The no.3 shade is pretty interesting, looks to be the same intensity of the official sand colour, but more golden in hue.
regards,
Jack