The stall speed and the Mach buffet speed at that altitude would be, guessing, about 100 kts apart perhaps slightly less, say 190ks to 290kts IAS,
This being the case, why do I get the feeling that many on this thread are concerned about either stalling or entering mach buffet and experiencing a loss of control? With a 100 knot difference, I wonder why a spurious stall warning wouldn't be easily recognized. I get the feeling from many here that flying under these conditions is like trying to balance on a bowling ball.