Deburred the holes to support side wall wiring runs so I could install grommets.
Cleaned up fwd fuse area where I was drilling items for the fuel lines, gascolator, manifold, etc.
Climbed up in the hell hole for a bit; noticed that the silicone I used to hold the cables in the longeron channels came off the comm cable in some areas; cleaned up and re-caulked.
Dug out the ELT to determine if I could mount it where I wanted, next to the hell hole. It will fit. Since I have to run cables for it to the panel, I wanted to know where to put things now that I'm working wiring issues.