Yes..the subject of Archie, and it's overall effectiveness (or not) is certainly interesting.
From all accounts..well, certainly the few Ive come across...it had seemingly little real impact?..and was more a case of 'well, there are enemy aircraft up there, so I guess we should have a pop at them'..though perhaps that is an unfair statement?
Moving forward a couple of decades, it would appear that AA fire during the Blitz, was more of a morale booster for the unfortunate population of London's East End, than a really effective way of shooting down enemy aircraft.
That said, I'd be very interested to learn more
BTW Bullethead.
Was the job of Artilleryman in the role you performed, also encompassed with Anti Aircraft duties?..or where you guys solely mud-movers, and AAA was a seperate Job?