I had a hard time getting started on the project today, but I finally dragged my butt out to the garage in the late afternoon. First I spent a few minutes looking around the cockpit and cataloging all the things that I need to make labels for. There were a whole bunch of things that I had forgotten, such as the Bowden cables for the cockpit heat, alternate air and oil cooler door. Alternate static source, CO monitor switch, rear seat trim, rear seat Push-to-Talk, etc.
Next I pulled up the floor boards, and modified the area where the rear seat riser will rest. I had originally used round-head screws, as that part won't be visible, and round-head screws were less work. But, the rear seat riser sits on top of those screw heads. So, I needed to do the work to to use flat-head screws that are flush with the floor. Then I put the floor back in, and studied how I will secure the rear seat riser to the floor. I came up with a plan, but my back was starting to complain from all the leaning over into the cockpit, so I changed jobs.
Finally I did a quick test to confirm that there were no issues with recording data from the EFIS and the Engine Monitor simultaneously. It worked great. No issues at all. I realized I need to modify the scripts so they won't fail if there is a momentary interruption in the data, such as might happen when the bus voltage plummets during engine start. And I still need to write the script to record GPS data.