Hauling a dolly across the country

I picked ours up at the factory as it was only a four hour drive. Pulling it home with my truck it did not really bounce around that much I didn't think. We lowered the air pressure down to what ACME recommended. I have also pulled it empty several times around here to move cars for friends when needed.
Personally as long as you have your ramps secured tightly and the tire pressure down I don't think it will hurt it at all. ACME is a very well made dolly. Just my thoughts.