Progress tonight. Finished the shear webs. The plans had you stop one bay in from the end and I extended them out between ribs 6 and 7. Care was needed to get the rear spar down in the rib as you worked out past rib 4. I was checking for squareness and ribs perpendicular to the board as I went along.

The aluminum spars were filed, straightened and cut per plans then test fitted and epoxied in place after the shear webs were done.