I was leaving out the detailed type specific system adjustments to the elevator neutral position in fully powered systems to try and simplify the case. I sincerely hope that the JAA never try to examine students to this degree of technical knowledge. If the question/answer was "how does the elevator lie in relation to the trimable tail in power assisted systems when in trim?" and the book answer is "we don't know, could be a bit up or a bit down", then I am happy with that.
If a question turns up in relation to fully powered systems then that will open a whole new can of worms.
Dick W