Can I just get confirmation of these points.
Electric trim switches. Electric thumb switches trim wins over MCAS
Hidden column-force switches. MCAS wins.
Ethiopian captain was trimming 'successfully' - it was on handover to his First Officer that the problem finally got out of hand.
Relaxing column forces. The prime problem is the delay before MCAS inputs again. Those five seconds lead to misinterpretation of the trim wheels' renewed cranking.