I think most F53's have the FW tank in the back corner of the bedroom, on the floor. Our 32' Georgetown did. Because of the high quality water in Anacortes (#5 nationwide) we always went out with it full.
Our rig swayed more than I expected, as my previous experience was with a Class C. I looked into the cost of all the suggestions on this forum and a couple of others. I decided that, since it looked like a spiffed-up U-Haul box truck, I shouldn't have been surprised that it rode like one!
We jointly decided we'd rather spend the money it would take to improve the ride on CG fees and gas. Since we ended up leaving the lifestyle permanently after four years, that turned out to be a sensible choice.
Just my six-pennies' worth.