Thanks for the pictures and ideas, Bill. I think that the saw guide you use is clever, and will certainly assist in setting the saw on track. No doubt there are those who will follow your lead here. There are many saw guides to be purchased.
I prefer not to do this as the choice if angle is something I like to be flexible about, and select one that suits each project. This reflects that I view dovetails as a design feature, as well as a structural joint.
Do you have more than one dovetail angle you use? Here is a set of 4 markers, from 8:1 through 5:1. The other marker was a fun piece I made about 20 years ago, a dovetailed dovetail marker
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