AFTER seeing off early Argaum pressure, the Old Boys ran out winners by 28 points.
Argaum's Jim Twist, on the back of that pressure, eventually bisected the sticks to put his side ahead on the third penalty attempt.
The Old Boys took the lead with a Jamie Burton try, which fly-half Alex Buckley converted. Argaum's defence held out on the heavy pitch to stop Devonport's ambitions, but centre Del Jenkins got on the end of a good move to score a second try and Buckley's conversion made it 14-3 at the turnaround.
The Old Boys then took charge using the Roborough slope to their advantage and Jenkins headed home for his second touchdown and Buckley added the extras.
Second-row Paul Walters did the work for Neil Harthill to dive in on the left wing before Devonport pushed a five-metre scrummage over the Argaum line and number eight Scott Williams got the touchdown.