We are experiencing significant movement in our Jay Feather when we are level with stabilizers set. Most of it seems to be left to right. It improved a fair bit when we set the Jack-in-the-Box jacks under the slideout. We have ordered step jacks for the 3 step entry steps and a set of BAL tandem wheel chocks. We have been using rubber chocks, but they do not get nearly as firm as the BAL chocks will. We will see where we are at that point. If more stability is needed, we are going to try the BAL Lock Arm stabilizers. We will tie them in to which ever direction is the problem, either front to back or left to right. We doubt that it will be front to back, especially after ratcheting down BAL chocks on both sides. The Lock Arm product bolts to the frame and to the base of a stabilizer jack. We'll update after the BAL chocks and step jacks are in place along with the slideout jacks.