In our simple kantei-kai in San Francisco the first question the student is asked to answer is always quality. Choose A+ A B C or D. How does one do this when you have only seen three or four good swords? Well, use that as your database, is this new sword as good or better than those four you have seen? Assign it a quality and move on to other parts of the kantei. If you find later than others have rated the sword way higher or way lower than you then ask what do they see that adds to the quality. Do this one by one with many swords and some day you'll have an impressive database all your own that you can call up and that is based on your own assessment...
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