Everyone Active had six regulars missing, including joint top-scorer and new father J Langley, but were boosted by the return of fellow top-scorer P Joswiak.
Mawer, Bailey, Adams and Winter all came in for starts.
They were rocked when Fizz, from the kick-off, raced through the middle before unleashing a 30-yard shot into the roof of the net.
This was the start of a frantic first 20 minutes as a wind-assisted Everyone Active scored four goals.
The first came from captain Parish, followed by strikes from Joswiak and Mawer. Joswiak then stuck again for 4-1.
Fizz kept probing the Everyone Active back-line and were rewarded with a second via their captain, following a great cross from the left.
Everyone Active hit back within minutes as sloppy defending allowed Winter to slot in to make it 5-2.
The second half followed the pattern of the first as Fizz, who were now wind-assisted, lay siege to the Everyone Active goal.
The Fizz captain was involved in everything.
He was rewarded with a goal following a long ball, and nearly made it 5-4 within a minute via a free-kick, but a great save from Bailey kept them at bay.
Fizz cranked up the pressure and got another goal for 5-4.
However, they let their guard down within minutes as Walton wove through to restore the two-goal cushion at 6-4, and as Fizz pressed still, Winter sealed the game on the break late on for 7-4.
Elsewhere in the league, AS Motors entertained title-chasing Caistor at Holton-le-Clay Cricket Club.
Within 15 minutes, Caistor were 2-0 up and Motors had to chase the game.
Motors did get back into the game and went into half-time level.
However, Caistor soon took the lead again.
It was a game full of mistakes as each time Motors equalised, Caistor hit back.
Ultimately, the final score was 6-5 in Caistor's favour.
Aaron Watson scored four of Motors' five goals.
Referee Trevor Albery and his assistants performed well.