Why should tire labels line up with valves?
I have a quick question: the other day I had to change a tube due to a flat, and when I put my tire on the wheel, I lined up the tire's label with the valve. As I did this I thought, this is in the OCP instruction manual, and if I don't do it and take a photo of the bike, I'll get in Big Trouble on BF.
My question is, is there a rational reason for doing this? Or is it just one of those conventions that has been passed along person to person?
Also, do I look like a n00b if I have the sticky labels on my rims? They are traditional-looking aluminum Mavic CXP-22s with 32 stainless steel spokes.