We used air bags on our 2000 F350 and were always happy with them. Then, we got our new truck and started reading various comments and suggestions on other options. Now, I feel like I'm stuck in analysis paralysis, because of the many options. If they were each $10, I'd buy them all and see which works best. Unfortunately, they're way too expensive to do that type of testing. Our truck rides and handles GREAT, but I would like to raise the rear end a few inches.
On the Sumo Springs - are they always engaged once installed? If so, does it negatively impact the ride when unloaded?