How many of those who's been through stage 3 did sim prep beforehand?
There are a few places out there who offers xHours on a 747 for $$$
For those who's done it was it worth it or was it better not having any experience on the 747 coming in to the sim and having a greater learning curve (for those who didn't)
Is it needed or can it in someways have a negative impact on the actual sim?