Doc,
I didn't forget to list a heel-to-toe measurement. I left it out on purpose. My feet aren't that big, so everything I ever bought if measured that way I would have gotten cheated....
Larry,
Never heard of Smoots before. New one on me. I ruled out furlongs, because there are no horses involved, and I dislike the inaccuracy of working with a paltry fractional number. Of course, we could get Bob a tape measure marked out in scientific notation. That's the ticket!
42 ft = .06363636363636363636363636363636363636 Furlongs, (approximately)
But Larry's mention of his favorite unit of length reminds me that back in junior high school, we used a special set of units to describe how speedy we were on bikes. But most people didn't get it. By careful calculation we were easily hitting 7.9x10EE6 Goolagongs per Fortnite (gpf). We thought that was really something....
Divot McSlow