If I'm seeing it correctly, that's not a problem with the bronze rod is it? And every case is different. I would bet the cranks are held to a smaller tolerance than the cases are.
I'm running the same crank you are (M&M 4mm) and have zero issues, as well as a ton of other people. So either Andy is using random crank components or some customers cases are wack.
EDIT: I do see where you clearanced it for the rod now, not just the tins