If you need to consult the QRH to handle an overspeed, might I suggest you should not be on the flight deck.
Its not a question of your suitability for flight deck duties but in this day and age you won't be considered suitable to be on the flight deck if you
don't consult the QRH (if its not a memory item)! A bit like the tailpipe fire-do you do it from memory or read the procedure form the QRH? All good unless you stuff it up then the first question asked will be "Did you follow the procedure as laid out in the QRH?" I am not disagreeing with you Leadie but if you start following any procedures other than whats been laid out then the limb you are out on will not be supported by the rest of the tree.