[HuggerCST]

I have one of Fuelcellguy's tanks, and don't have any trouble with slow filling, but I usually don't hold it wide open. I usually fill it at about 1/2 to 3/4 speed, which is plenty fast enough, and it's only a 16 gallon tank, so it doesn't take long. If I top it off too fast, it will burp fuel out when it gets full, and if I pull into a station that has the big boot around the nozzle, I may have a problem, but so far it hasn't happened. I think the key to fast filling is being able to vent the tank as fast as you want to fill it. I have mine vented with a 3/8" hose at one corner, and another 3/8" hose running from the top of the tank to the filler, just below the gas cap. It works ok, but I think a 1/2" vent line would be better.