Vilas, well said.
For those of you advocating/thinking of using System 2/secondary effects of controls for normal operations, have a read through these incidents, both involving use of/demonstrating the trap of using FLCH on an approach:
https://www.atsb.gov.au/publications...r/ao-2011-086/
https://www.atsb.gov.au/publications...r/ao-2007-055/
Maybe they thought they'd get more precise speed control...
