My wife and I are new to camping and I have a question.We have a ForestRiver Flaggstaff 31ft with a slideout.We have experienced our TT rocking after we set up.Are you supposed to let the slide out first and then level the unit?And also are you supposed to use the jacks and tighten them up real tight to take the weight off?I was told that the jacks wouldn't stand all the weight but how much weight?Thanks for any information....