I just got back from a 5 night camp trip and I used two slide out supports under the large slide. We noticed a great improvement in the stabilization of the trailer. No more rocking. I placed each slide out support on a 2"X10" block of wood, then on top I placed a 4"X4"X36" wood block between the support and the slide floor. I used just enough tension to hold the support in place.
Also I used the pyramid jacks just in front of the front axle, BAL X-chocks on each side and the OEM stabilizer jacks.
Russ & Kim
2014 Alpine 3600RS
2007 Dodge Ram 3500 5.9 4X4
2008 Harley Davidson Road King 105th Anniversary
(2011-5 bad year)(2012-40)(2013-45)(2014-23)