Originally Posted by gums
The mach buffet feels different than the stall buffet. One is more of a buzz and the other is more of a "shake".
If you are responding to my post #1084, I suspect we are talking about different things. The airplane encountered "low speed" buffet at 02:10:53 at Mach 0.68. I believe that buffet was caused by "an oscillatory interaction between local shock waves and airflow separation", rather than the stall buffet as you describe it..