Gadge, Thanks for the clarification. It makes perfect sense.

I should note the other Masport's I have encountered (3 in total) have snapped well above the boss. Unfortunately I don't have any photo's of these.

This one was a little unique.

I will remember to take a photo of a completely snapped crank when I find another one. I just find it interesting that I have only seen this type of issue with Masport's.