Construction began using conventional cast in-situ columns for the first 8 to 12 levels, with the construction team achieving floor cycles of 7 days on average. To accelerate the program, Multiplex made the decision to switch the in-situ columns to precast concrete using the APTUS coupler system, effectively removing these elements from the critical path. This change reduced the average floor cycle to 5.5 days achieving a programme saving in excess of 20%, delivering a total saving of 60 program days (3 months) for the project.