It's basically the generation of angular acceleration and momentum via the short radius . . .
The key is short radius to build up speed . . . then to extend the radius to take advantage of the speed. That's why homer said that #2 is SIMPLY LEVER EXTENSION. You don't really have to work to uncock it fast (you can though if you want) but because of the way it works according to law . . . when the radius extends the surface speed increases.
Perfect. I'd like to argue, but even your grammar is good for a Southerner.