anyone running rear air bag helpers

I've ran a couple of sets of Firestone air bags. They well level the truck. Makes it look like you are not overloaded. On my 2011 F250 I had to have them. That purchase was a big mistake, but I had to have a truck quick. Last year I traded for a DRW F350. Much better choice. When the truck was not pulling they made the truck rough to ride in. Even with the psi down to about 10 lbs. Your not suppose to let all the air out. I also had the pump Works good but you know you are overloaded. I did not like that.