Mark, I too agree that judgement needs to be applied, but that is primarily needed when the rules are UNclear.
From the USSAILING website: One of the main training points for judges is to: "1.Interpret the RRS and other rules as they are written, not as you think they should be written or as it was intended that they be written."
To simplify this (a bit)...
In the Tornado example, there was no rule excluding the material, but there was a fairness issue. In this case, a judgement call was needed to EXCLUDE the material.
In the F18 example, there is a list of what IS allowed, everything else is NOT allowed. In my opinion, judgement about "it's sort of similar" has no place at the table. Fairness should never have entered the discussion, it was an illegal material, period.
