Britain's adaptive rowers came away with three gold medals and a silver from the Munich World Cup regatta.
Paralympic champion Tom Aggar won the men's single scull with James Roberts and newcomer Samantha Scowen taking the mixed double sculls.
The mixed coxed four of Vicky Hansford, Naomi Riches, Dave Smith, James Roe and cox Rhiannon Jones also triumphed.
Andrew Houghton claimed a silver, finishing close behind Aggar in the men's single scull.
Elsewhere in the Olympic races, 11 GB boats reached Sunday's finals through the semi-finals and repechages.
Aggar began the medal rush for the adaptive crews after easing past the fast-starting Ukrainian after 450m to win in five minutes 6.02 seconds with team-mate Andrew Houghton clinching silver.
"I'm really pleased. This is the first big regatta since Beijing and it was good to put a big score on the board," said Aggar, who also paid tribute to newcomer Houghton.
"It's been tough getting back into training since Beijing and it's been good to have someone there every day as a reminder of how the standard is improving. That's pushing me to improve as well."
Roberts and Scowen overcame a poor start before overtaking Poland at halfway to win in 4:17.67.
"We had been planning to lead all the way" said Roberts. "Once we drew level we had a good race. The partnership is going well and to have to recover from a bad start and still win is a good sign."
The mixed four, who had former bobsleigher Smith and Roe join Paralympic bronze medallists Hansford and Riches took an early lead to finish over four seconds ahead of Germany.
Riches said: "Everybody stepped up today and we got the result we've been striving for. It was nice to race against some new opposition. This crew is a powerful combination with a lot of potential".
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