Got my Zimbabwe's in yesterday (I backed the first offering). My second purchase from Gustin (first didn't fit) and finally found the perfect fit I think. Just barely got the top button done so with stretching should be an awesome fit. Excited to break in my first pair of raw denim.
That was my experience with the Okayama. I only got the top button done, but not the others. It only took hours for the stretch to be comfortable, and 2 days, 1 soak, hang, wore damp, and now they fit as if made to measure. I love them.