There's probably not a lot of landscapers using airbags but they work great. I even have bags on my Ram 2500 that pulls a 16' enclosed trailer. My daily driver is a 09' 3500 4x4. You could put 5K in the bed of the truck and it wouldn't sag at all. The best deal I could find on these PacBrake units was about $250 from Mass Diesel. The list price is closer to $330. It doesn't matter if you tow a gooseneck or a bumper pull these bags will give you a solid level ride. I had Firestone bags on my last 02' 2500 but the PacBrake bags are a little better. I would definitely stay away from the Airbagit.com kits.