Here's what Andresen Hitches is offering for supplemental warranty to their Ultimate 5th Wheel Connection:
"If a consumer or Dealer is denied warranty coverage by an RV manufacturer, Trailer Frame manufacturer or King Pin manufacturer, because of failure or damage alleged to have been caused by use of the Andersen Ultimate 5th Wheel Connection (gooseneck or rail mount), and it is proven that the damage/failure was caused by use of the Andersen Ultimate 5th Wheel Connection, then Andersen Manufacturing (d.b.a. Andersen Hitches) will cover said failure or damage up to $5,000,000 (five million dollars) and pay the End User an additional $500 (five hundred dollars) for inconvenience."
They provided this in a written document for me.