I am fairly new to the pop up world and I just recently bought a 1995 Dutchman in good shape. I have one concern though, the roof sways back a fourth a few inches when the roof is in the up position. I am wondering if this is normal wear on a pop up at this age with an a/c until on top or is it something to worry about. I just bought it to be able to camp in 100+ Texas heat with an infant but I also want to make sure it is safe. If anyone has any ideas on how to fix it I would appreciate it. I am mechanically knowldgeable but new to pop up's so I don't know the inner workings of the roof lift system or the structure itself. Thank's in advance for any help.... Dave.