On the launch....Road & Track says best time was achieved with a 4200 RPM drop clutch launch.

I think the computer will not allow an an unloaded RPM > 4200. So......I think.....if you start with a 4200 rpm launch & run it to redline & don't hit 2nd gear swiftly enough ....the computer may sense an unloaded condition & drop the rpms to <4200????? The accelerator pedal position is sort of meaningless....it's drive by wire..not a direct link....


Does this thinking make sense to anyone ???

I still think your best bet is to shift around 54-5700.