I recently "re-watched" my CG safety tips video that I've had for a while. I do this a couple times a year just to refresh. Anyway, I've always get this one wrong, when gassing up a boat with a removeable fuel tank why is it better to remove the tank, fill it up on land then return to the boat? I always assume that it's better to eliminate the steps of removing the tank and transfering it to the dock. Seems like more chance to drop, spill.... Anyone know why they say it's better to remove?