BillieBob:
If you bother to refer back to my referenced post on 18/May you will find:
Vmca is the min dynamic "recover and maintain S&L constant speed" speed for sudden complete failure with gear up and everything else in t/off position - there's no requirement to even demo this in the UK.
All control demos are steady state:
1. start at Vyse, gradually throttle back an engine, slow down until a control reaches a limit or Vs+5 reached. Recover by retarding live and lowering the nose before throttling-up both
2. as above but at zero thrust
3. as above with gear and flap
4. as above but at 3-5 deg of bank to live
The only dynamic demos are done well above Vmca: initial failure demo, EFATO, Vtoss.
IMHO fooling around with dynamic failures near to Vmca is asking for trouble and accomplishing nothing -especially if the aircraft is allowed to stall, which must have happened in the situation cited by Centaurus.
What exactly didn't you like about this?
HFD