Ball position has very little effect on clubface
Could your AoA be too steep (from setup and/or alignment) for the amount of left you feel you're swinging?
Ball position, he says, is 'back in his stance', so AoA too steep is a distinct possibility. And much more so than if he moved his ball further forwards.
Precisely where is your ball position?
Could your AoA be too steep (from setup and/or alignment) for the amount of left you feel you're swinging?