I try to zero out to the heel pad and I still feel a bit of twist/torque
I try to zero out to the lifeline of my left hand and this gives me the most confidence feeling of straight back straight thru without the twisting of the shaft/clubhead.
This puts the pressure out of the last three fingers(PP#2?) and into the palm of the left hand from the pisiform bone to the 1st mercarpalphageal joint.
I go up the Lifeline and add an Uncocked Left Wrist. That may put things a little past Zero.