This situation pops up quite regularly when a relatively simple feature such as the diameter of a hole in a machined part doesn’t appear to be right when the part is at the assembly stage of manufacture. Like similar disputes, the finger pointing begins and compromises are made but the problem doesn’t go away.
The moral to the story is that the best way to overcome obstacles and/or achieve success is to seek out those who have overcome the same barriers and succeeded. In other words, the key is asking the right questions of the right people.
In the production environment, where tight tolerances are a way of life, it’s critical to think about gaging requirements before putting instruments out there and possibly having them not meet expectations.