Re: FS as a training aid
Cynical pilot is correct, to an extent... BUT...
...the advantage I find with some of my geek students is an improved ability to interpret the instruments. Once you specifically point out the pitfalls, they will often progress quicker because, unlike the non-geeks, they can look inside, get the information, and look outside again.
I often find older students, particularly, staring at the alti looking for hidden meaning or chasing the VSI.
Maybe it's just that some people don't listen.