by Paul Cook - Northern Suburbs have maintained their impressive recent run of sevens form with victory in the inaugural Sydney Premier 7s competition at Forshaw Park last night. The Shoremen were well drilled and along with fellow finalists Warringah, were the slickest outfits on display amongst the six remaining sides to qualify from the mens regional sections. They beat Sydney University and Penrith to top their pool before recovering from a half-time deficit to down the Rats 22-17 in the grand final. In the women's section, Parramatta proved too quick and too strong for the Northern Suburbs Redba