Degreeing Cam by Measuring Overlap @ Lifters

All I'll say is some of the fastest cars on earth have used this method. Also, this method is MUCH older than YouTube. I didn't invent it. I do differ from most because I don't use the feeler gage. Most calculate every .004 to be 2* ??? Anyways, we'll both continue to do it the way we want, which we should.
It might be worth pointing out those fastest cars on earth didn't start with this method they probably degreed their cams several times and then as we know top fuel fastest car on Earth kind of dragsters refresh their engine in between rounds and use the same exact components and use this method just as a quick check...