That sounds great, but none of this has so far influenced any of the estimates practically used of the sugata measurements, which remain as precisely defined as a “parsec” in Star Wars. I’d love to be able to do better, you obviously know a lot about the topic, so it’d be wonderful to have something solid to rely on.
43cm is double the size of a handspan, so I’m not sure how this works. My handspan is about 22cm. The Pali commentary refers to the “average span of a man in the Ganges region” which would be somewhat smaller, perhaps 18cm. Some standard spans are mentioned in Wikipedia.
Do you have any information on this?