Front crease update
For those interested, I just picked up my 30ft FC and I asked them to please reinforce the front locker to prevent the crease problem. They called Airstream and were told they were aware of the problem but they should just go ahead and reinforce the area if they felt they needed to. They agreed to do it for me before I picked it up. To everyone's surprise, when they pulled things back they found that Airstream had already mounted CNC milled plates at the factory, a solution better than what they were going to weld on. So it looks like the new ones are going to be just fine.