crewmeal, wiggy: Points well made and well taken. I understand the nutters out there winding you up and the increasing conspiracy crap.
My raising the point initially was not to join in with the chirping; it was merely my reaction to the way some posters responded to the original query. I have no doubt my reaction was probably coloured by having spent an hour reading some of the other stuff in, for example, the Jet Blast thread. And that would help explain my describing some of the sarcasm as vitriol.
Sorry if I ruffled any feathers here, when I should perhaps have reserved my ire for the other thread!