Are you using the jacks on the slides themselves or on the frame in that area? Generally jacks on the slides are NOT suggested....check your paperwork.
We have a 26' and had no problem in the front, but the rear had more bounce than we liked. We were overnighting at a CW and in looking around DH found a type of jack, I guess you could call it. It's a length of angle steel with legs that make sort of a tripod effect, then it's secured and tightened with a heavy strap and rachet. That may not be the best description, but check the CW website and you should find it. They're a bit awkward to set up, but it's solved the wiggle in the rear. We went ahead and got one for the front as well. Someone else had a similar system with pix on here just a few weeks ago...you might get lucky and find the info on them. Pretty much the same concept.
Trailerless but still have the spirit
2013 Rockwood Ultra Lite 2604 - new family
2007 Rockwood ROO HTT - new family
2003 Ford F-150
4 doggies - We support Adopt/Rescue.
Sam, you were the best!
Cubbie, Foxy, Biscuit and Lily - all rescues!