I have a 2013 Bighorn 3010, with the six point level up system. I have used the trailer many times since I purchased it in May. The level up system is awesome. I am now set up for the winter in south Texas on a concrete pad . Didn't have this problem all summer but since setting the trailer up on my site, there is a lot of shake every time we move( walk, sit down, get up off of chairs). Our small dog even makes it shake. I hooked the trailer up to my truck and retracted all of the jacks and did the setting up process again. Still shaky...Do I need to use the scissor wheel chalks to get rid of this? Should I have to use them with this system?