[quote=@pugbutter]
I personally think customary units will give the pieces a stronger historical feel. Inches derive from the length of a certain king's thumb, from the tip to the first knuckle; a foot is, well, the length of one of his feet. A lot of them have "rule-of-thumb" origins like that, whereas metric is more modern.

Still drowning in coursework and character sheets btw. I haven't forgotten this, although by the time I start writing you might already have introduced Gen III.
[/quote]

Well, again, translated document. I didn't feel like making equivalency tables for thousands of totally new made-up languages, so I decided to standardize and save all the hassle. I get how it feels, but more than how it feels we're trying to maintain plausibility.