Fronting up for their third grand final in four years, the Reddies confronted their decider demons face-to-face, ousting the minor premiers with a clinical display of sevens rugby

"I'm just so proud of the girls and the amount of work (they've) put in this year is unbelievable," skipper Brittney Bedford said.

It's a win to savour for the Reddies faithful but the result seemed miles away with Griffith calling the early shots at Conolly Rugby Complex.

Former Leeton star Ua Ravu dominated first half proceedings for the Blacks, steering her forwards around with aplomb before fighting her way across the chalk in the third minute.

Concerns were raised over a potential double movement from Ravu, prompting referee James Martel to consult with his assistant before awarding the try.

Unphased, the Reddies set about rebuilding and opened their account two minutes later when Ellen McIntyre showed a clean pair of heels down the left flank and scored between the sticks.

Emma Hickey's conversion handed CSU a 7-5 lead before a Ravu indiscretion saw the Blacks reduced to six players.

The numerical disadvantage proved too much for Griffith to handle as the Reddies powered their way downfield before Hickey delivered the hammer blow in the final play of the half, skipping out of a weak tackle attempt and planting the ball over the line to stretch CSU’s lead to 12-5 at oranges.

The second stanza opened in puzzling circumstances with Griffith unintentionally fielding seven players despite Ravu’s earlier yellow card.

Referee James Martel consequently awarded CSU a penalty on halfway and sent Ravu back off the field, giving the Reddies a prime opportunity to attack from the middle of the field.

Eventual Adamson Medal winner Sophie Thomson made the most of the extra space, scoring CSU's third try of the afternoon to make it a 19-5 advantage with six minutes to play.

Star winger Biola Dawa struck two minutes later, shrugging off two defenders and diving under the posts to establish an almost insurmountable 26-5 lead with three minutes to play.

Ravu, however, had unfinished business with the Reddies and completed her double to give the Blacks a glimmer of hope.

That hope dissipated as Andy Bedford's charges wound down the clock, piling into defensive rucks and swarming Griffith’s bigger bodies as the seconds ticked away.

The Blacks had the last laugh when Lauretta Leoa-Seve brushed off a tackle to score late, but by then CSU’s victory party has already started.