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Joe Dante wrote "The correct swing, retaining the wrist break is like a small wheel. It's easy to get started and the energy put into it produces a fast
rotation. The poor swing, hitting too soon and opening the arm-shaft angle, is like a big wheel, hard to get started and never reaching much rotational speed."

He is, of course, talking about Conservation of Angular Momentum (COAM) the effect we see when an ice skater spins faster by pulling her arms in towards her, and slows when she extends her arms.

In TGM terms:
7-18 LEFT WRIST ACTION
...
With the Endless Belt Effect, The Belt (Hands) and the Clubhead have the same RPM but the Surface factor sets in and gives the Clubhead greater MPH - in reverse proportion to the size of the Pulley (the smaller, the faster). That is, raised Hand Position - reducing Accumulator #3 Travel - plus Trigger Delay. Conversely - a larger Pulley (lowered Hands) requires a higher Handspeed and an early Trigger. See (6-B-3-A), (6-F-0) and (6-N-0).

The backswing is about coiling the the upper body against the hips. When tightly coiled, the hands are higher ("raised Hand Position" -- small pulley), but an early hit from the Top or End causes the hands to drop ("lowered Hands -- large pulley").

"The Four Magic Moves To Winning Golf" by Joe Dante was my bible prior to studying TGM. It was first published in 1962 (like Homer, a man before his time?) and is now available as ISBN 0-385-47776-7.

The above quote was from page 116.

Yoda, is it possible that Homer Kelley is refering to the same meaning that Dante describes?