Quins, who gave a debut to centre Karl Pryce, their loan signing from Wigan, then went two scores in front when Australian loose forward Bailey made light of some soft defence to crash over for his first try for the club.
Analysts also said gold is underpinned by ongoing European debt issues, a continuation of central-bank buying after Bank of Korea purchases, plus still-soft U.S. economic data that means continued loose monetary policy and perhaps even more stimulus.