Through the first two games of this Eastern Conference quarterfinal series, many Bruins fans had to be wondering whether this whole Jaromir Jagr experiment was going to work out.

The 41-year-old future Hall of Famer looked a little slower than he had in those first few games after he was obtained from the Dallas Stars prior to the trade deadline. And the fit on the third line with Chris Kelly and Rich Peverley just did not seem to be there.

All that changed with his and his line’s performance in the B’s Game 3 win over the Toronto Maple Leafs on Monday night. Not only did the line both keep and create momentum for the team, it was able to cash in on a scoring chance when Jagr picked Ryan O’Byrne’s pocket and fed Peverley out front for the B’s second goal of the game.

Jagr is close to the end, for sure, but he is not done yet.

“He may have lost some of his speed, but he hasn’t lost his hockey sense, his creativity or his skill level,” coach Claude Julien said. “He’s a committed individual. To be that good at that age, you have to be committed, and he is.”

As for the slow start in the playoffs, Jagr said the illness that cost him the last two games of the regular season is lingering.

“I had a tough flu before the playoffs. I wasn’t easy on me because I like to practice hard to get ready for the games, but that was the first time that ever happened to me,” said Jagr, one of about a dozen Bruins players who skated in yesterday’s optional practice. “I couldn’t do anything for five or six days and I lost a lot of weight. I still don’t feel good. I feel better every day but I’m still not stronger like I wanted to be.”

While Julien has implemented a defensively responsible system that the team has adhered to pretty strictly throughout the six years he’s been with the Bruins, the coach freely admits that the team is not even attempting to fit the square peg that is Jagr into the round hole of that system. It simply wouldn’t make sense for what is expected to be a short-term run here.

And Julien said his happy-go-lucky personality has been great for the Bruins dressing room.

“He’s been good,” Julien said. “He is different and he has his ways of preparing himself. He loves to work out. As a coach, sometimes you want to give guys rest, and he prefers working out. I think at this stage of his career you let him do what keeps him going. It’s pretty impressive for a guy that age to keep going the way he’s going. But he’s a great individual. He’s funny, he likes to joke around, he’s a pleasant guy to have in your dressing room. That’s what people have to understand. Some people think he’s high-maintenance, but he’s not. He’s high-maintenance with himself, but not with us.

“When we got him, the thing we wanted to see from him was to play within his strengths. He’s strong on the puck, he’s great in the offensive zone, he makes things happen. We told him, ‘Just go out and do that. Don’t worry about anything else, just do what you do best.’ We accepted that as an organization. We weren’t going to ask him to change, we weren’t going to ask him to do anything. We took him that way because we thought he could help us that way.”