Push backside straight back, don't rotate through impact
Instead of rotating through the impact area to add power, keep your weight on your lead leg and push your backside straight back in a straight line. The instructor says this creates room to accelerate the club through impact.
Channel: Danny Maude
Watch official source at 8:39Why this context matters
The instructor calls the resulting move an optical illusion: it looks like a turn but is really a push-back.