Northerners invited Kyabram to bat first after winning the toss and when the home side ripped through the visitor to have it reeling at 6-50 the game looked over before it had barely began.
But the fall of the sixth wicket simply brought Nick Ryan to the crease, who proceeded to score 103 of his side's next 128 runs — farming the strike brilliantly along the way — to give Kyabram a defendable total of 178 all-out.
Ryan slashed 20 boundaries — including five maximums — from 80 deliveries before he was the last Redback to fall.
The Jets had an ace of their own up their sleeve though, winding Daniel Campbell up and letting him run riot on the pitch to steer the side to a seven-wicket win.
Campbell whacked 22 boundaries — including eight sixes — in his unbeaten knock of 129 from 88 balls.
Shane Lines (3-29) and Jason Lakeman (2-19) had earlier bowled superbly for the Jets, with Cody Harrison snaring 2-17 for the Redbacks.
Invergordon remains idle ahead of SJ Perry Shield knockout action, having once taken to the pitch in the competition since December 7 — and that match being back on January 18 — due to another opposition forfeit at the weekend.
It left the clash between Karramomus and Central Park-St Brendan's as the last of the round, with the latter comfortably chasing down a victory target of 147 with eight wickets and nine overs to spare.
Ash Hooper, Tyron Cover and Chris Linehan all snared two wickets for the Tigers before Travis Beck (77 not out) and Cover (31 not out) steered the side home.
James Scott (30 retired not out) and Karl Higgins (29) batted well for the Bloods.