After some fiddling and adjusting, I created 11 good wall sections. The first one turned into a test piece, since I got the Y and Z axis alignments wrong. So I had to cut another section from the board, the lower one in the second photo. Then it was just a matter of standing with the dust system hose in place to reduce the chip mess. Each section took about 15 minutes.
Tomorrow I’ll do the tenon side. I expect there’s be a bit of adjustment on the first one of those as well.