Per Tom Tomasello's instruction...Tom says Homer is telling you how to start the club down in section "6-B-2-0 The Second Power Accumulator"...where Homer says, "Centrifugal Force, Accumulator #1, and the muscles of both forearms, any--or all--are available to actuate this assembly."
Reference Tom's Australia video series for the muscles of both forearms version of swinging and the Tomasello Letter video series for the Accumulator #1 version.
For a Centrifugal Force version, utilize trigger types 10-20-C or 10-20-E. 10-20-C per Jodie Mudd and 10-20-E per Sam Snead.