So this happened:
I accidentally forgot to set my speed at 320kt and set it at 345kt on TS, on the A330. Was about to get an over speed warning after I left the device for a little bit and I wasn’t sure how long the speed warning was on for, but I pulled back on the yoke as quickly as possible and somehow I went into a flat spin and crashed. Literally, went into a flat spin and crashed, falling from 29,000ft.
Obviously what I learnt from this is set my speed at 320kt so then it becomes M.86 instead of >M.87 which is over the limit, but does anybody know a better idea to not going into a flat spin to avoid a violation?