After all the science has been considered, I think you have to really consider the history of the two pilot groups. At QF we are paid by the sector and many
VB Captains still have the Ansett legacy of had being paid by the minute, habits can be hard to break expecially in pilots.
Clear to Land
As an aside, consider the wisdom of a 320 kts climb if you are late. It may be faster to climb slower and get into a tailwind. I prefer to trust the FMC a little more for optimum climb speed, if you are late just bump up the Cost Index, I also put limits on Performance page 2.