Best onboard airbags for Duramax

I have AirLift 2,000lb bags on my truck with single channel. I started with 5,000lb dual channel and found out that they made the ride significantly rougher plus the dual channel restricts articulation. My truck is a half-ton but even on a 3/4 ton and additional 2,000lbs of lift should be plenty. Dual channel is good if you have a high CG load like a truck camper and need to control rocking but other than that I would stick with single channel. My experience was that more than you need is not better. The 5,000lb bags with built in jounce bumpers may work better with a gooseneck hitch. At least they do on an F150.