FlexibleResponse
At high altitudes especially, speedbrakes should be the primary method used to prevent overspeed when excessive speed trends occur.
Thats a wind up right?? You wouldn't wanna do that in a heavy 321 or 320 for that matter.
The speed brakes retract at a slower rate at high speeds which makes getting rid of them even tricker if the whole thing is botched up.
Since this wee mishap, the SOP has changed to speed brakes 'as required'
And no need for the cadet bashing, it wasn't a cadet.