"10x" wrote in message
...

Once you find that "sweet spot" on a particular dovetail bit / dovetail
jig combination, take a scrap piece of hardwood about 2" x 12" and run
it through a surface planer until the thickness precisely matches how
far the bit protrudes from the base of the router. I then drilled a
hole to hang it, put a coat of finish on it, and labeled it with a
marker so I wouldn't throw it out some day when I had a brain fart.

Alternatively, route a hard wood board with the bit profile in it at the
correct depth.