Blackmail........as usual.You've come out up and ahead!! Many thanks.This is very very close to what i had originally thought.But i still feel that there would be SOME kind of a "reversion mode"even in level flight VNAV path.Dunno why but its still bothering me.mebbe i gotta dig deeper.Many thanks in the mean while Blackmail....( second time in the past week......lolol)Cheers now.