It was a mixed start to the decade, but in 1975-76 the PSA cleaned up, winning 27 out of 28 games with a points record of a tremendous 1164 For and only 146 Against. The captain in that exceptional season was Douglas Charters, who was later to become Club President from 2000-01 to 2003-04.
The club's Diamond Jubilee came in 1979-80, when extended premises were opened by Robin Charters, at that time an SRU Selector.