Dai Young reckons the Blues made a major statement to the rest of Europe with their gutsy display in Paris.
Blues boss Young was left wondering what might have been after his team came mighty close to pulling off a major shock against Stade Francais.
And after picking up a bonus point in Paris, he has set his team's sights on finishing the job in Cardiff this Saturday.
"We are proud of the performance and it is pleasing to prove some of the doubters wrong and prove we had the stomach and quality to match them," said Young.
"To come to Paris get so close to a victory has shown our continual improvement. It has not been as quick as some would have liked and people have thrown stones at us. But every year there has been a sustained improvement and now we feel we can be competitive against any team.
"Next weekend is a completely different game. We have to make sure we put in the same level of performance but hopefully a different result. We know we have to win that game if we want to qualify.
"All the points add up so a losing bonus point was welcome and we have gone away twice now and picked up something. We have to win our home games and other people have to play their part."
However the bonus point in Paris cannot fully compensate for missing out so narrowly on victory and Young admits his team must learn the lessons of the missed opportunities that could have made such a difference.
He said: "We still lack that little bit of composure and the clinical edge. We got ourselves in a position to get the result and we tried to push that pass a little soon. That is what we have got to learn from the Heineken Cup. You only get limited opportunities in these big games and you have to take them.
"Perhaps we should have kicked one of the penalties we got late on but we asked the players to back themselves and they felt they had Stade on the racks. SO they went for it and we have to applaud that decision."
The Blues wasted four golden opportunities to clinch the game in the final ten minutes after bombarding the Stade try line. And Young was left fuming after English official Dave Pearson refused to award a penalty try after Stade flanker Antoine Burban appeared to take out Gareth Williams at the back of a driving maul, yards from the line.
Young said: "We were very disappointed with that decision. We felt aggrieved because we should have had a penalty try. We were going forward and their man came down and pulled down the ruck. But that's the way it goes."