Quote Originally Posted by JimmyHAD View Post
Some manufacturers of modern razors measure from the top of the spine to the bottom of the cutting edge, others measure from the honing flat just beneath the top of the spine to the bottom of the cutting edge. So you might buy a razor advertised by the manufacturer as a 6/8 and find measuring from the top of the spine it is 7/8. The thickness of the spine would ideally lead to a 17 degree angle IIRC, give or take a couple of degrees. There are long threads on that topic and I'm sure someone will correct me if I'm wrong ...... I was wrong once before.
Jimmy - I'm sure if you look back on things you will remember that you only thought you were wrong, but it turned out you were wrong about that and right in the first place!