I havent read JD's article but that does sound odd Tinstaafl....the only thing i can think of similiar to that would be a V2 overspeed giving us better performance from the 2nd segment on.
In smaller aircraft this zoom climb technique gets u thinking, why would you want to be remaining on the runway chewing it up for emergency use and then zoom climbing when you could take off as usual and have gear up already ad be climbing and accelerating away.
hmmmmm