xdashdriver
Well-Known Member
We operate in this domain and although we very seldom use SIC's, our POI insists that they autopilot be physically disabled if they are to log time.
History is full of POIs insisting their own personal interpretation of the regulations is correct and valid. That's probably how @MidlifeFlyer makes part of his living.
FAA Letter of Interpretation - Nichols (2009)
Pretty clear in the letter of interpretation that you can log SIC time under 135 with an approved, operative autopilot installed, provided it is not used.