Justin Edinburgh was left with mixed feelings after a Jekyll and Hyde performance saw Leyton Orient overcome Dover Athletic 4-3 in the FA Trophy.

Goals from George Elokobi, Macauley Bonne and Matt Harrold saw Orient go 3-0 up with less than an hour played, only for a trio of Dover strikes to peg them back.

David Mooney scored a 90th minute effort to ensure Orient avoided a replay and advanced to the quarter-finals of the competition.

While Edinburgh was pleased to remain in the competition, he couldn’t help but be frustrated Orient didn’t seal safe passage with less complication.

“I think we were a couple of minutes away from the best performance we have had since I have been here,” he said.

“That contrasted with the end but we have won the game with quite an incredible finish really. It was no less than we deserved, but we were instigators of our own problems.

“There were positives with some real poor moments in the game. That frustrated me because I don’t want to see that creep back into our game after the strides we have made.

“There is a lot to reflect on, but I am delighted to be in the next round of the competition.”

Mooney’s winning goal sparked wild celebrations among the traveling Orient support as Mooney scored his first goal since the visit to Barrow in October.

The veteran forward was delighted to be back among the goals and took the chance to praise the Orient faithful for their support.

“It was great and I haven’t had the best of times, so it is good and gives you a little confidence boost,” Mooney said.

“Hopefully it sends everybody away happy and gives me more confidence as well. It was great and the fans we have our great.

“I have said that for a long time, even when they were giving us all sorts. They travel up and down the country and it is not easy seeing your team getting beat all the time.

“Sometimes you have to give them something back. The effort from the lads has been different class and we are starting to reap the rewards with results.”