Alright, you came back with no water and had sway.
If you put a 300# quad on the back with a rack that will probably weigh 150#, that's 450#. Divide that by 7# per gallon and you'll need to have 64 gallons of water up front to offset the quad - and that takes you back to having the same weight distribution that you had today with no water and no quad.
So if you need the water for stability, you're going to need more than 64 gallons of water up front for stability to offset the quad and rack.
How big is your water tank? Can you move other weight up front?
Bill
