Had a look under the floor next to the I-beams in the area of the front outriggers. Nothing looks unusual that I could tell. The bolts aren't loose and welds look okay. I will have to pull the underbelly down to get a full detail look at everything but will have to wait until the spring now as the bad winter weather is just around the corner.
The outriggers are 4' apart and are pretty thin sheet metal at approx. 14 gauge. There is a piece of sheet metal that goes from one side of the trailer to the other and closes in the space between the I-beams and acts as an outrigger at the forward end of the trailer. That piece measures approx. 12 gauge. If those thin sheet metal outriggers are all that supports the thousands of lbs of superstructure sitting on them, I'm surprised it hasn't suffered a catastrophic failure while driving down the road...
It can't hurt to ask the factory what's going on and will do that.