Phew, blagged one, can relax now....
What I look for in a judge is a clearly independent enthusiast that has no irons in the fire as to the outcome of the event and can attempt and hopefully succeed in being able to judge the event fairly and without prejudice.....none of the judges know what variety is what when they are judged blindly like this.
Bearing in mind this, I got a pass for a category I have not entered, I have not seen this stated explicitly, but guess it is how you would like it done ?