Vne in the Bonanza is 196 kts. I believe that they are test flown to 10% above that before delivery.
So what is the "margin for error" ? Dunno, but the ruddervator beef-up AD is some comfort.
I rarely descend above top of the green - but that's just me.
Jaba doesn't seem to have the same reservations on descent in the
Retard
Vehicle - when trying to stay ahead of the FTDK!
Dr 