Over the weekend we had a couple of talks about this. I feel for you Wayne. You are a much classier man than I for waiting so long and giving them over a year. They guarantee the welds, but as we know it is never the welds that crack, it is the metal around the welds that crack as the hard weld stays put and the aluminum around it flexes.
Much can be said about service, when my boat (different manufacturer) cracked, the man that sold me the boat went to the wall for me, jumped up and down, made demands, threatened to send all of their boats back and sell another brand. They gave me a new hull, and threw a new galvanized trailer in to boot.
Wayne's sales guy is shrugging his shoulders and saying "sorry sir, wish we could help, but head office blah blah blah blah"
Terrible.
I sure hope something positive comes out of this for you Wayne. You do not deserve this, no one does.