...have involved an EPIC struggle with the panel and the fuel gauge. The newly installed brand new fuel level measuring probe leaked, quite a lot. This meant draining the fuel, pulling the probe, taking extreme measures to seal the new probe and the OLD probe I thought I had killed by mistakenly disassembling it when removing it. After taking measures to seal EVERY POSSIBLE LEAK PATH on both probes, I installed, set the Zero at the Princeton/RED electronics box, and performed the calibration procedure for the Third time at the Dynon. Two days later, the probe sense wire is still bone dry. So I've started putting the front of the airplane back together.