Yep Russ, I know what you're saying. I'm speaking of someone looking at a Koi who doesn't have a history of that Koi. Sakai knows his own fish like nobody else does. He knows which parents the Koi are from he was talking to you about, the ponds they were raised in,... from birth, and so on. Not the same for hobbyists at all.
If I were to step up to a bowl of Sakai's Kohakus though, not having ever seen them before,... knowing the age and the size at that age would help me in evaluating what I'm looking at. A fish's size is a very important factor,... not just for price. How the beni looks, the shape of the body, the look of the white,... so many factors play on the size and the age at that size.
You know I have no problem with people disagreeing.
Best Wishes,
Brady Brandwood