yes i read the dialog...but just wanted to make sure before changing anything.
Well i changed it to 0, but then found my knock sensors where also retarding the timing by 4degs.
So i've disabled knock sensing for the time being.
spark at idle now up to 9deg, as the table says it should be.
Lambda readings are now a little rich, so will now need to re-tune the VE table me thinks.
cheers
scott