Thanks - my engine is fine and with 700hrs on it I dont want to do an uneccessary overhaul due to EASA changing to a 12 year rule on Continentals. I fly an Arrow on private cat with a TSIO 360 and have been operating on condition happily for the last 2 years but the Go Flying article threw me as it implies that even on private cat that overhaul is TBO or 12 years. I hope I can carry on as things stand - hopefully teh rules dont change