PP
If I may, this is not BY's sim ride... I am not sure BA gives you three attempts in order to assess your learning curve. In one go, however well you do, that learning curve will remain a flat line.
What is the logic behind assessing candidates whom have proved for many years they can pass LPCs/OPCs on their rated type and yet to put them in a more than unfamiliar situation? After all, the day they suffer an uncontained engine failure on the Bus, what will matter the most? Their ability to handle an antiquated 1-11 or their experience on type (In the sim/emergency situations)?
I guess the issue here is more about selection rather than proficiency on type so in that case, a Seneca sim (cheap) could do the trick.