I read his question as where were the UNCOMMON tests done? After you eliminate shims, weights and blade curve as the common ones. That would be things like the cylinder test, the length tests, the flex tests, etc.
My "Other moment" - I had a referee run her thumb across my guard checking for the depth of a visible dent in order to render a decision on the likelihood of a tip catching there.
This was on a weapon that was bought new that morning, but I do not recall if the dent was noticed while pools were still proceeding, or if it was my first DE.
My fencing philosophy = quantity over quality. Eliminate the rest periods! Fence all three weapons! 15 touches for Vet DE's!