I have always put blocks under mine to level out the ramp. The crease is outward but I cannot believe it is from over weight. My Brute Force is about 600 lbs and even with me on it, the load is distributed among 4 wheels. My scooter is less than 200 lbs. We have used the ramp as a deck but never for more than 2 people.
We had a large amount of rain over the weekend and I think it is moisture related. The crease is somewhat diminished today after drying out for a couple of days, but I am sure it will come back.
I have been in contact with the seller and they have forwarded the pics to Forest River. Now we wait.
2017 Salem Hemisphere
2009 Chevrolet 2500 HD 6.0 L