Not sure how to answer the first one, but it's different having a construct around me. I was being creative recently and programmed one to give me the break down on psychokinesis, and results are showing. If I never would have done that simple energy exercise, I doubt I would be able to actually feel the construct.
Heard it is a game involving passing a construct around like ball to two or more psions.
Never read about someone using it to help 'give the break down' on psi.
Could that be done for meditation (thought control) or understanding awareness as well?