Britain clinched two silver medals in the Paralympic classes at the Sail for Gold Regatta in Weymouth.
John Robertson, Hannah Stodel and Steve Thomas were second in the three-person Sonar class behind the United States.
But the result was enough to give the experienced GB trio victory in the overall ISAF World Cup series.
Niki Birrell and Alex Rickham were also second in the Skud-18 class behind the US's Scott Whittman and Julia Dorsett, who won five of the seven races.
Rickham admitted: "We're happy, but at the same time we're slightly disappointed because we had the chance to win gold not silver. It just didn't go our way.
"All in all I think we're in a really good position though. We just need to make sure we are as close to the top as we are now and make sure we're still there in two and a half years.
"Nothing would be nicer to qualify for 2012 and win a medal here at home, considering our disappointment in Beijing."
Thierry Schmitter of the Netherlands, who was a bronze medallist at the Athens 2004 Paralympic Games, secured gold in the solo 2.4mR class ahead of France's Damien Seguin after finishing first and second in the last two races of the series.
Britain's Megan Pascoe was pipped for bronze by another Dutch sailor Andre Rademaker, but Pascoe's fourth place was enough to give her the overall World Cup series by two points from Schmitter.
"I did my best," said Pascoe. "I could have got into third today, so I was a little bit disappointed. I would have liked to have medalled here, but it's a nice silver lining to win the World Cup series."
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