I just realised I have a 3+3 warranty--there is a sticker over the 3+2 section in the warranty logbook. So I rang the dealer. I was wondering whether there is an hours limit on this--at my current rate of useage, which I hope will go up even more, I'll easily have 1400 hours up in six years, possibly 1600. So I quizzed him on this and got a moments silence. "I'll have to check on that" I await his reply.