We have had our airbag leveling system for years now and it will stay up for months at a time. We have a manual system with 4) air ride seat valves and 4) 100 psi gauges, without the original automatic suspension valves. When we eliminated the suspension valves our leaks went away. we have 7" of travel on the rear and about 6" on the front. We have never been in a situation where we have not been able to get comfortably level, I'm not saying we were always perfectly level, but we were comfortable. With airbag leveling you will still feel some motion as people move around inside the Newell or in a strong wind, but that has never bothered us too much. With the electric jacks you would have better stability when parked.
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SR
2005 45' Quad Slide
Featherlite Enclosed
The rest is too long to list.
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