The midfielder capped another fine display against West Ham with a goal worthy of winning any game 12 minutes from time.
Jacko won a 50-50 challenge just inside West HamÃ¢â‚¬â„¢s half, carried the ball for 20 yards and then lifted it over Jimmy Walker in the HammersÃ¢â‚¬â„¢ goal.
It was another notable win for our young reserve side Ã¢â‚¬â€œ MondayÃ¢â‚¬â„¢s included four Academy players Ã¢â‚¬â€œ and the 1-0 result left us 10 points clear of Arsenal, who lost against Fulham.
"I scored a goal very similar to that at Watford last season and it was great that it came off again," said Jacko. "The game seemed to be petering out a bit at that stage and it was fantastic to get a goal like that to win it.
"Teams are trying to come and beat us now because we're on top and that has made the games more competitive. West Ham were a decent side and to win is all you can ask for."
Jacko has been impressed with the performances of the Academy lads as Clive AllenÃ¢â‚¬â„¢s men have racked up 11 wins in 12 matches.
"I've been playing in this league for years, since I was in the youth team like they are now and I've been really, really impressed," he added.
"When I got back from my loan spell at Derby and the team was doing well I didn't really know too much about them but I've been impressed with all of them.
"It can only help them and they are quite happy to go out there and try to show what they can do without worrying too much about making mistakes and we're getting results with a number of them in the team."
Johnnie Jackson was delighted to contribute so spectacularly as our reserves maintained their title charge this week.