Good info, Brian. Our engine is somewhere in the vicinity of 1550 hours since major. It still runs strong, although the oil pressure in the heat of summer is lower than I would like it to be. Catherine sent her engine off to LyCon (I think it was) and as far as I know is happy with the result. I have a lot of things to think about in the next couple of year or so (at least I hope for a couple of years). It sounds like a factory engine can still have problems.