@nwy I'd call Malibu and talk to customer service/tech support to explain to them that you tried to pay for the warranty transfer; hopefully the two shops in question will back you up that they weren't willing to take the payment. I'm hopeful that you'll find someone who's willing to help in customer service. I'll have to check my ownership documents, but I thought the warranty transfer was $500. As far as the throttle goes, that sounds like a bad part unless there is some evidence of abuse