To close the thread, the Cat scale results are:
The 2006 25C94LB weighs 2994lbs without water and with empty grey and black tanks, one dump hose, two full propane tanks and a filled water heater (6 gals.) This also includes a solar PWM controller (no panels), cell phone booster, cabling and hardware, some small electronics (5lbs tops). Nothing else. No personal items. Squat, zero, zip, nada.
So about 630lbs over the labelled weight. Where that weight is remains a mystery to me. However, we will be under both front and rear axle and tire ratings when fully loaded. Good enough.
It's very stable driving with little leaning/roll. Surprisingly stable. I am not even on the overloads (1" off.) Air bags are currently empty. I do have a Hellwig rear bar. A big manly bar.
Thanks everyone for your input. I learned a lot!
Edit: I did figure out that the camper originally came with manual Happijacs. This one has the motors, controller and dually swing-out brackets. So that adds about 80lbs. Here and there, the weights does start to converge on the label weights.
