Expectation: everything is packed, settled, and working exactly as planned.
Reality: the show-day wipe-down has other ideas. A clean build is strongest when the visual decision also respects fitment, serviceability, and real-world use.
A little patience, a quick check to mock up the change before final finishing, and a willingness to laugh at the timing usually restore order. The story gets better once the problem is behind you.
Show day always finds a way to test the plan! Mocking up changes before the final finish is definitely worth the extra time, better to catch fitment issues before everything is cleaned up and ready to go.
