Do not match shoulders to the slope on left-foot-high lies
On a left-foot-high chip the low side already lets gravity pull you back, so matching your shoulders to a big slope pulls you back even more. The speaker says not to match your shoulders to the ground when the left foot is high, and to stand more upright instead. You would only match your shoulders on a slope so severe the ball would otherwise go straight into the ground, which rarely happens.
Channel: Golf with Aimee
Watch official source at 4:57Why this context matters
Answers what the speaker calls the most-asked question about this slope.