2014 Columbus 320RS with 6 point leveling system - its electric - slower than hydralic but easier to install and much easier to maintain. Works well.
As far as 6 versus 4 - the 4 outer jacks level the camper on both systems, the last to are stabilzers, and I believe are worth the price difference. As far as lifting the whole unit, I do not know if its recommended (I doubt it) but in my learning process it was done.
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2013 GMC SIERRA SLT 3500 HD CC Z71 4X4
HENSLEY BDR3 TRAILER SAVER AIR RIDE HITCH
BLUE OX BED SAVER
2014 COLUMBUS 320RS
WAR EAGLE !!
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