I tried it yesterday and it works! But, I believe the manual misses some steps for the trick to work...not really missed but without
carefully, the truck won't fly!
Make sure you first set up your 'M drive' options as described in the Supplementary Owner's Manual. That means, your EDC, DSC, Power and HUD will be changed from 'Efficient' to 'Sport' once you press the M button on the steering wheel.
If everything is properly set you should be able to see "Power", in the small screen by the main dash, once M is active and MS is set to 1 as per previous instructions in this thread.
Now, just floor the gas, wait for the flag, release the break and hang on!
