By Tom Primmer & Brenden Hertel Competition heavyweights the University of Queensland and GPS cruised to crushing wins in Round 11 of the Hospital Challenge Cup, while there’s a new team in the top-four as the finals picture becomes clearer.  UQ accounted for Souths 56-21 in front of their home crowd, the Heavies securing their 10th straight win to remain the competition’s only undefeated side.  From the set-piece to a sparkly backline sprinkled with youth and experience, it’s hard to find a significant flaw in this Uni outfit, with seven different players crossing for tries on Saturday including Queensland Reds youngsters Kalani Thomas and Mac Grealy.  “It’s nice to have another win under the belt,” UQ Assistant Coach Elton Berrange said.  “The veterans Con Foley and Conor Mitchell were so busy yesterday. They were into everything.  “Our back three had a big day with the Oates brothers and Mac Grealy really connecting well in counter attack.�