MAX’s Return Delayed by FAA Reevaluation of 737 Safety Procedures

[Smythe]

In this switch config, it does not allow to separately turn off elec trim and AP trim.

I believe earlier it was discussed that the way MCAS is routed, it could be disabled by turning off the AP trim, but leave elec trim on, as it is more powerful way to move the elevator than manual trim....
Has that been shown to not be valid?

EDIT: corrected ref.