A few suggestions from someone on his second 'foot.
Walk the floor carefully and completely, testing for soft spots.
Open the hatch and stand on the bed. Press on the fiberglass around the hatch in the area of the sag to test for sponginess. Also press on the flange of the hatch, looking for movement.
I fail to understand folks claiming Bigfoot didn't install escape hatches. Both my 'feet were purchased new and had full size escape hatches over the bed. I'm pretty sure a second means of egress is an RVIA code requirement, besides being a good idea. My other 'foot was a '98.
I agree the window molding is cosmetic issue. It's the butlyl seal under the window flange that is important. I've reset the molding twice now, and it's pulling away from the corners again.
For real peace of mind, consider taking it to a
Sealtech testing location.
