Went around in circle and ended up with covers that were so poorly fit that I decided in the end to scrap them both.
The problem that bit me (twice) was my failure to secure the EF-602 channel to the F-605 seat back brace. It was over 100 degs in the garage and with the monsoon season in full swing, it was too humid for the evap cooler to effectively cool. Should have stopped, cooled off, and re-started fresh. Instead I slogged on and started making mistakes.
Fitting the covers requires a lot of cleco insertion and removal. Yes, I tried to do this first with file-folder cardboard sheets but then still needed to install the alum and trim to fit. During one of these fittings, I lfailed to secure the EF-602 channel and marked the covers for trimming that it didn't need. TWICE.
