bubbers44;
I'm familiar with mach buffet which I guess some people call high speed stall.
So...as per comments above and your experience, can the difference between Mach buffet, and stall buffet, be felt/determined? Your thoughts...would one know when one is in high speed or low speed buffet?
I've felt high speed once, very briefly, and it was "sharp". I haven't felt low speed, at high altitude except in the sim and I don't think the sim experience, (Level D sim) is valid beyond "normal".