The mixing of scale figures has been quite a decisive topic on this forum before. Most model figures seem to be based on a 6 foot figure which is really only true quite recently. It's only really since 1950 that the 6 ft. guy has become more normal. If you ever visit HMS Victory you'll notice (Painfully, bumping your head.) that the height between decks is only 5 ft 3 inches as that was the height of a tall person in those days; actually, if you were over 5,3 you were safe from being conscripted into the navy as you wouldn't fit. Fast forward to the mid 1900's the average male in England had grown to about +/- 5ft 9 inches. The only guys taller were the ones from the colonies: South Africa, Canada etc: Which was why Sailor Malan said the Spitfire was cramped he much preferred the Hurricane.
In the 1960 when I started work, I noticed that I (at about 6 feet tall) was one or the tallest there, especially when compared to the guys who’d lived through the 2nd world war. Now if you take a 1/37th figure and then scale that down to 1/32nd (Based on a 6 ft protype) then he’d come out at approximately 5ft 6inches. So, mixing 1/37th figures with 1/32nd machines could be, historically speaking, be about correct. Just don’t go the other way around as a 1/32nd figure into 1/37th scale comes out at about 6ft 6 inches, he’d have been a giant in the 1940’s. A I/37th figure should be about 52 mm tall, were as the 1/32nd figure about 57 mm tall, both based on a 6ft prototype. Hope this helps.
Remember we do this for fun John the Pom