Well I thought I did it right also, especially as how every time I have seen someone show how to measure the angle, this is how I have seen it done. Now how it was told to me to do it, is similar, but will give slightly different reading. After being told that the angles shouldn't be as I described them, I was asked to send pictures. As I have a full shop, I thought it would be easier to make two templates a foot long, one at 141 deg, and one at 143 deg, laid them on the rail, and took the photos and sent them. They then asked if I would do it with a protractor, so I redid the photos as you see here. Now they say thats wrong, and that the protractor head needs to be level with the front rail edge. In effect what happens when doing this, is that the protractor head ends up being about a 1/4" lower from the back top edge than measuring it the way I had always seen it done. Because of the inward slant on the pocket facing, basically you end up with about a little over a degree different reading than the way most everyone else does it. So 144 deg, becomes 143 deg. Looking at it I can see one possible reason they want it done this way, and that is because the ball actually touches the inside edge a little lower than the top edge on the inside of the pocket opening, or maybe they are just looking for a reason to say everything is fine the way it is. All I know, no matter how it is measured, my pockets are no where near the 141 deg everyone says it should be. We will see how it goes. To their credit, they have not avoided me, and have been getting back to me in a timely matter.