dualwheels that sounds like exactly the truck I'd like - you're killing me by not posting a pic!

IMHO I like separate lines to the airbags. Seems to me more in-curve stability with a load. With them connected, loading one up in the turn would send pressure towards the other bag, the exact opposite of what you'd want when cornering.

I fill them up manually though and it's kind of a pain to keep them the same.

I love the ride vs stock in my old 250. Came back from FL towing this weekend and the concrete went un-noticed...