Just for the record
Oh yes. I remember now. That's the moment I hijacked the thread and it went on just about forever after that!
At that time I didn't realise that Pilot DAR had a semi godlike status on this forum and I just wanted to provoke some discussion.
Worked a treat it seems! (eharding correct so it turned out - but no harm - I learnt a lot about pprune as a result). Might be a good topic for a social psychology master thesis.