I am currently on my first winter vacation with this trailer. This morning as we were getting ready to head down the road I placed a 4' straight edge on what seems to be the most bowed out portion. ( basically in the middle of the slide opening in the wall) As the slide started to move in the bow straighten slightly leaving about a 1/4" space on each end of my straight edge. The side wall stayed in that position until the slide fully retracted and the my straight edge had maybe a 1/16" gap on each end.
After watching it I wonder it the wall has a permeant bow in it, and the slide is over extending pushing it even further??
You're right I'm going to document everything as best possible.
This trailer has been disappointing to say the least!!! From surface cracks appearing in the front cap to this - the list goes on and on.