Centaurus, trouble is the Sims (in general) are not programed to be representative at 35000 they handle the same as they do at 15000. + the stalls are not representative eg hold full back stick on a 330 sim at 35000 with an aft cofg (38%) and after some buffet the nose will drop. I.e conventional stall. But we know that this is not the case. IMHO this is criminal. Much of the stall teaching on sims is negative training. & no you can't do it for real as the aircraft "might" break if mishandled. So how would the crew really know what to expect of a FBW stall. I certainly don't (I can guess) & I've been flying them for 10 years or so.