Well, I think it is a cautionary tale for those who think that the manufacturers could easily get it right. It is simply not that easy. Here is the way I recall it:
The original Key PAs were almost perfect. One might guess that either Key and MTH used the same drawings, or MTH copied Key, because MTH was very close.
Then Key started on the second run, and displayed it at OSW. Dennis was horrified that they missed the nose, and I reported to you. Gary said they had used Alco drawings, and you and I suggested a quick photo study. It was fixed in an hour flat, but what if nobody had noticed?
That's the point - once a manufacturer has brought in production quantities it is too late.
This is something that takes a manufacturer willing to ask, and for those who study these things willing to take a look and offer advice. Othrwise, we get inaccurate models.