Do we really need Nitro???
Ed,
I hardly call anyone who writes for MAN an expert. Have you read any of their crap lately? I have yet to find a review that actually is truthful about the deficiencies in a kit/ARF/or engine.
Running a ringed engine slobbering rich will not damage an engine one bit. Running an ABC/ABN engine will. Please avoid the generalizations about the advice posted on the this forum.