I had a nice new fuel stick from the seller, but he only put a single calibration mark on it, so the grand plan today was to drain the fuel and as we re-filled the tanks, mark off the fuel stick in even increments.  This took way longer than planned, as the only way to drain the main tank was to use the fuel check drain which just kinda dribbles out.

Anyway, after a few hours work, we now have a fuel stick calibrated for both the header and the wing tanks.