"We're very pleased with the result and on the balance we dominated for large parts up front," he said. "We caused them a lot of problems in the scrum and that was the basis for a well-deserved victory. They came back into the game more in the second half but we defended well. Now we need to stay focused and become more consistent."
Gopperth's director of rugby, Steve Bates, meanwhile sympathised with referees and lauded the contact between clubs and officials, but claimed issues over the tackle area must be addressed.
"In Premiership rugby we have a lot of communication with the refereeing department," he said. "We're constantly talking with them about how they will look at the breakdown. Every club had an opportunity to make some recommendations after the last round of matches. I made some, but you don't always see your recommendations being taken up.
"The referee has a very difficult job but we're not seeing as much consistency as we'd all like. There needs to be a move to get the tackler out of the way very quickly and if they don't, then get them off the field."
Bates was responding to comments made by Tony Hanks, who had called for consistency from game to game. But the Wasps' boss also insisted clubs must retain their ambition despite having to operate in the perceived shackles imposed by the current law set and its interpretation.
"As coaches we're the ones who need to take responsibility for it and must continue in our pursuit to play positive rugby," he said. "We don't want to throw the towel in and we must work with referees. It will take a bit of time."
