Originally Posted by Aeroplane

I like Sheldon's little tips like this for wheelbuilding. It's kind of a "code" that let's you judge the work somebody does, even if it is based on something stupid. If your wheelbuilder takes the time to orient the rim that way, put the valve hole over the hub marking, and put the tire on so the label is opposite the valve hole, it's a sign that he puts pride in his work.

Not saying that if a wheelbuilder/shop doesn't do this they aren't quality, but if they do, they most definitely are.