I've often wondered how high you can drop a crank before it makes a difference. Not that I'm gonna try it though.
If you doubt that Honda assemble cranks anything less than perfect then it'd be worth measuring one. All said and done it's a production part and if they aligned them like an NSR500 crank you could expect to put a zero on the end of the price tag.
I have to say that these days things are better with NSR cranks. I reckon they have a new jig, or a new boy assembling them, but cranks from a couple of years ago were not that clever straight out the box. They were OK but I wouldn't have put on in my bike without smacking it around a bit first.