The builder asked me if I'd ever ran a Fram filter on it because of their bypass. I can't remember what I ran on it in the beginning, for the last 5 years or so it's always had a Wix Gold on it.
My uneducated guess might lean more toward an oil starvation issue than debris but who knows. The engine came with a 4 quart pan on it which I always overfilled to 5 quarts and I have abused it on hard corners for 4 seasons now.
Either way, I'm glad common sense kicked in and I took a look. Now I just have to figure out a way to pay for it...