Trigger Types and Trigger Delay

[tongzilla]

In other words, Kelley's model has to do with the increase (or decrease) in Clubhead Speed with the Handspeed held constant. And that Clubhead Speed is inversely proportional to the diameter of the pulley wheel, i.e., the smaller the pulley wheel (at the end of the Delivery Path of the Hands), the greater the increase in Clubhead Speed during the Hands' encounter with it.

Handspeed held constant is an important aspect to keep in mind when reading about this topic in the book. What makes it more confusing though is how Homer talks about Handspeed changing when we change the Accumulator #3 angle, because that also affects the pulley size.