used to go raving a lot early 90's & never experienced a mosh pit. the odd sweaty gurner stomping into to me with his eyes rolled over was as close as i got.
do remember a mate telling me about this techno/gabba club he went to in italy where all the locals pilled into each other in the middle of the dance floor & made a human tower/pyramid like they do in those religious festivals.messed his head up when he came back from the bogs & saw them all swaying towards him