I got a nice lesson from Doug Fattic when I was doing my name on my frame. This will not work for all decal applying. He said you don't want lettering to be positioned directly centered on the downtube. Being that when you look at the artwork on a downtube your looking down at it and not eye level. So the artwork will be closer together on the top and further apart on the underside of the downtube. I noticed this also when I did my Sports Tourer. After I looked at it as I position it to be centered on the tube you couldn't really read it unless you got down to look at it at eye level to the downtube. Lesson learned. But how one builder does it to the next is something you can't really go off of this with if you want it to be completely original.