@screw
The previous manager set up our partnership that way because he didn't want to carry the extra 550 lbs of fuel around. Of course he wasn't much of a cruiser. I tried to change the rule when I took over but got voted down. And you're right trying to hit the 1/2 full mark was a major pain and source of many arguments.
With the FloScan it's all pretty straight forward. Now we track fuel used, purchased and fuel credit. I can put in 100 gallons and only use 50 and still have 50 left the next time I use the boat.
The hard part was learning that at cruise (about 30MPH) we get about 1.0 MPG. Best case is around 1400RPM or about 9MPH I can get about 1.5 to 1.6 MPG.
Hey JW I hope you have the +$30K for fuel on your trip.