[Billpotter]

For long distance voyaging; gas is like beer, bait, food, and toilet paper: We all complain more when we ran out, than when we had plenty: I'd keep all of the gas capacity I could tolerate, and size the tanks according to how much I changed the weight distribution. I ran a 23 for years with a single 225 OMC looper with 50/ 100/ 40 gallons, bow to stern. We always had enough gas, and used the forward and mid tanks most of the time- we only used the aft 40 gallon tank for really long (70 mile one way) runs. My current 23 project with 115 four strokes has 50/ 70 gallons- that was all I could fit, and keep a bow fish box, a console step down, and a forward of transom storage area. I would feel more comfortable with 30-40 gallons more. With the 70/ 50, I'm figuring on running on the 70 starting out heavy, and having the 50 as an absolute safety/ get home supply. Using the thirds rule, I'm still short on gas for what I plan to use the boat for.