After a long hiatus, I got a couple of hours work in today. I had to take a break while waiting for my shipment of plywood to show up. It arrived yesterday and I was pleased to cut into it today.
The first thing I did was cut the 6mm ply into strips to cover the sides of the spar. Then I prepped the ends to prepare for scarf joints in the ply. Finally, I epoxied one sheet to the front of the spar.