I agree 100% with TennCharlie..

I dont really understand why this would be necessary for a student...!!

In my experience instructing, feel is the key component to the new student picking up on the concept. It seems to me that new students generally need to be weined off the Hard pull, Jerky stick video game mentality.. putting expo in a trainer may be counterproductive to a student whom you want to teach the fundamentals to...My instuctor always always always told me and other students, "just fly the sticks".....Didnt understand at the time but when I became an instructor, It all made sense...Keep it simple..

If a trainer seems to need expo, I would be more concerned about why...this isnt a general characteristic of trainers...

1) incidence problem
2) balancing problem
3) To much throw to start with..

Just my opinion...