When you're buying a ~$100M/unit where the manufacturer is making 15+% margin, you get pretty good access to do what you need to do in order to feel comfortable with the purchase.

This is pretty normal is it not? In the automotive world when you have quality or run rate problems the big 3 company will have someone on the line watching.

Yeah, same for consumer tech. We always had our own people embedded in the manufacturing operations in China/Taiwan/Vietnam to keep things running smoothly and ensure there were no miscommunications around specifications.