>Who was one of Stukeley's big buddies, that he used to discuss "matters diverse" with for hours, and who knew a thing or two about levers and forces?.....<

Yikes Nigel! I'm still reeling from John Woods' Druidic/Masonic concepts for the sun and moon structures at Bath - who the hell's this big buddy of Stukeley that you mention? (and did you know that there's maybe a bit of a Druidic/Masonic tradition evident at Alton Priors :-)