We had the same problem in our 2011 and 2012 365BHS. Increased the height of my front and rear blocks so the leveling legs and rear stabilizer jacks didn't have to extend more than a few inches and installed JT Strong arms, which eliminated all the sway, but not the bounce. Finally, I bought an additional pair of crank down scissor jacks and have the passenger side mounted slightly in front of the front axle, and the drivers side slightly behind the rear axle. Now we can pretty much dance inside our 375 BHFS without any noticeable movement. Note: I also have a tripod stand as well as homemade wheel chocks...