"That [mooloo bell] created double home advantage for me," said Waikato-based Buchanan. "Any noise is good. I want it to be really loud tomorrow."
"It was awesome - gave us goosebumps," men's lead out rider Bulling said. "That's what drives us to keep going. You can hear it for sure."
The women settled into a smooth cadence early and cut into Italy's previous best time by 0.759s after the first kilometre. That extended to 5.057s by 3000m and 6.766s by the finish.
"We wanted to stay calm and see what we could do," Buchanan said.
In contrast, Bulling said the men had a shock on the start line.
"We're happy with the race but three of us slipped our wheel and lost about 0.5s. It was heavy out there [on the boards] but we were pleased to go sub-four [minutes]. Good on the Danish too for coming back and putting together such a good time."
Denmark's crash gouged out of a chunk of track. The riders walked away safely despite the crumpled mass of carbon fibre and lycra. A posse carrying repair kits, including former pro rider Jack Swart, soon fixed the damage. Mops and brushes tidied the rest and the meet resumed in haste.
There was an element of disappointment the women had gone a second outside their personal best.
"You train so well, come here on race day and the [velodrome] boards felt heavy so you have to stay on top of your gear. There are still two more rides and we can get better."
Boards generally heat up and produce quicker times with more activity over the course of a competition day.
Buchanan said they had a realistic chance of challenging Australia because their rivals' line-up would change due to others' involvement in the omnium.
Racing starts at nine o'clock tomorrow with omnium, sprint and keirin events. The team pursuit semi-finals will run in the late afternoon.