I'm with you Rod, I think perhaps there are a lot of people who think they are owed replacement engines due to minor manufacturing deviations. Jin has always been willing to do anything to make the engines work. As someone who worked in fast food, people always demand an entire replacement meal for getting a small fry instead of a regular. A behavior reinforced by "customer is always right," free returns, and companies just shipping replacement product rather than require returns. Despite these engines being manufactured they are still hand made, and that means you are buying functional, not flawless. Fortunately Jin is willing to replace your small fry in order to correct your meal. I bet Tom Jensen didn't give away free engines due to minor leaks and cosmetics, but I'd bet he certainly sent free replacement parts.