So the trailer came back from the shop and the rotors were indeed warped (now repaired); however the trailer is still jumping (frequently) as I bring it to a stop. The diagnosis now is the "dampener" is shot and needs to be replaced. Because I have a 2010 trailer it was manufactured by "Reliable" who is out of business. The only solution from MC is replacing the entire actuator / tongue unit for $1100 (including painting). This would bring the trailer to current specs.
Very frustrating to pay a premium for a new boat and only get three seasons out of the trailer.
I understand the bad logic here; however is there such a thing as going to electric brake system on a boat trailer that is dunked?