PJ2;
In AF447 pressure errors developed in the pitot/static system as the AoA exceeded approx. 25 deg, causing the IAS to drop rapidly, to below 60 kt at about 41 deg AoA. I gather that AoA in your exercises did not exceed 40 deg enough to silence the stall warning, but did you by any chance observe a rapid drop in IAS between 25 and 40 deg AoA?