Britain won four medals on the final day of racing to finish with eight from the World Cup Regatta in Miami.
Luke Patience and two-time world champion Elliot Willis were victorious in the men's 470 class.
A broken kicker for Nick Thompson saw him miss out on gold in the laser class and slip down to silver.
There were also silvers for Hannah Mills and Saskia Clark (women's 470) and Ben Saxton and Nicola Groves in the Nacra 17 event.
Giles Scott and Bryony Shaw had unassailable leads going into Saturday's final day of their competitions, having both secured their gold medals on Friday.
World and European champion Scott, unbeaten since returning to Finn class sailing 15 months ago, finished second in his final race to beat nearest rival Ivan Kljakovic Gaspic of Croatia by 25 points.
Shaw was 10th in the final race of the RS:X women's windsurfing class to successfully defend her title.
There were also two silvers in the Paralympic classes on Friday.
Alexandra Rickham and Niki Birrell finished second in the Skud, while Megan Pascoe was runner-up in the 2.4mR class.