In 25 words . . .

[PeteBooth]

The actual choice is this:

How does one's association call it.

Example;

In FED, there is the "gorilla" balk and years ago F1 could not check a runner.

There were some associations who would not call this "technicality" a balk hence no call was made. Same with the Gorilla Balk.

Therefore the REAL answer is What is the concenses in the association you work for.

Pete Booth