Calibrated the fuel tanks which required getting readings for empty and full and doing some math. Unfortunately I didnt realize that they have a tool on their web site that will do the math for you. They should probably mention that in the manual...
There is also a page to fine tune the calibration through the EFIS. I havenet found any instructions for it yet, but it was pretty straight forward. Nonetheless, I want to be sure thatd my guage is accurate, and this required filling and draining the two tanks several times.