Set up matching your impact position: tilt, line, hands
The single plane swing starts the setup in the position the body and club reach at impact. The instructor sets up with body tilt rather than standing straight up and down, forms a line between the lead arm and the club (the same line whether hitting a wedge or a driver), and starts with the trail hand where it will be at impact so it moves non-rotationally.
Channel: Todd Graves
Watch official source at 4:50Why this context matters
Framed as the single plane swing setup.