And 'unstable' simply means either (a) too many uncorrected errors, or (b) too many resyncs?
And 'agreed'. I am very much indeed inclined to go with AA's opinion. I am trying to understand BT's robot brain, because understanding might mean less of my wasting AA's time with needless whimpering. This was a purely accidental discovery anyway. I don't believe it's a good idea to be wielding these tools which AA has trustingly made available to the user, after all, they didn't have to, and it's a mark of respect for their customers which I thinks speaks well of their attitude.