CSU has skipped clear at the top of the ladder after some mixed results across the women's 10s round on Saturday.
All four games were played at Conolly Rugby Complex and after a 60-0 win over Albury the Reddies find themselves eight points clear of their nearest rivals.
Leeton moved into second with Skakiah Byrnes' lone try enough to take a 5-0 win over Tumut.
The Bullettes are now third, a point behind the Dianas, after two losses in their last three games.
Waratahs finished behind on the scoreboard for the first time this season, they were stripped of their win in round one for playing two unregistered players, after a 32-17 loss to Griffith.
The Blacks are still just behind the Wagga side on percentage to round out the top five.
Both sides are a further point behind Tumut.
In a twist of the draw the Waratahs and Griffith clash again on Saturday at the same venue in another rematch of last year's preliminary final.
Wagga City bounced back from their 70-0 loss to CSU last week to bring come out on top for the first time this season.
They picked up the points after the Waratahs indirection but come up with the goods on the field this time to take a 35-15 win over the still winless Ag College.