Project post-mortem:
There was some tearout (as can be seen in the photos), and some uneven tool alignment — leave a roughing clearance for final passes — recommended tooling for final passes:
- the dovetail tool — add additional passes w/ it using the keyhole tool so that it cuts the bottom of the entirety of the underside of the lid
- a sharper tool for the sides — need to find a long-reach 1/8" downcut
Another possibility is just cutting it to final dimensions after putting in the magnets, cutting it to final dimensions/shape on my Jointmaker Pro: