I guess it comes down to cost. Thats why I asked about the bladder fuel cells versus if there were any guys running home built aluminum tanks. I wanted to have the tanks equalized with a cross over with a surge tank in the middle and I did not find any bladder type cells that have a cross over opening at the lowest point and ATL and fuel safe told me they did not recomend it. So for about $100 and an afternoon of time I have these with a stainless 1 1/2" cross over and surge tank and foam filled to stop the sloshing. The wieght of the tank will rest on the bottom supported and padded with the tabs just for locating bolts, not to hang from.