My favourite exercise in the sim is EFTO followed by NPA using LNAV/VNAV AUTOPILOT FLIGHT DIRECTOR to minimums.For some reason more than 60% of trainees end up losing control and crash due to poor thrust/trim management (not an issue on an airbus due to auto rudder trim and a/t).They can fly a S/E ILS without a problem but this exercise causes a LOT of grief.........strange.