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To a previous poster (and everyone else here who knows more about flying airliners than I do) If the stickshaker is based on angle of attack instead of airspeed (I'm not sure if that is the case) that would explain why stick shaker occurs earlier with the spoilers up even though stall speed is not increased. It would be due entirely to the speed brake increasing angle of attack- not due to any decision made by Boeing to increase stick shaker speed even though stall speed is not increased.
Of course I have no idea what I'm talking about (I'm still a CFI due to the economy) because I don't know if the stick shaker is based on AOA or IAS. Wait a minute... why am I posting then if I am clueless?
Oh yeah- to tell you that your image did in fact post successfully!
