crossbow of one foot, two foot and 'a tour'

[Micke D]

still the distinction between either term refers to the stirrup accomodating one or two feet

I don't belive this to be true at all.
I will reconsider it when someone can show me a convincing stirrup that you can but two feet in and draw a crossbow.
Another thing to think about is that the draw weight of the two foot crossbow will be way to high to span with just the body.