It was the normal joke when flying a passenger in the Hunter.....
'I will put the controls over to you'... Switch the power controls off...
'it's yours'
'Oh, not stong enough to fly it?'
...'Hang on, I;ll take control back' ...turn on power controls.
...'can't see the problem'
Repeat as long as you like.
A manual reversion is like putting control locks in. The ac can only be flown using the trimmer. ..more or less.