I think zero storage is a far too strong word. You can do some pretty heavy work before and after the point where you try to focus all your power. But it will be far from 100% force. If you aim for a steady thrust / steady rope handling you will never reach 100% of your power.
I mentioned plyometric above. I really think the golf stroke can be made to have plyometric qualities. And I think we can see some of it in for instance Michelle Wie as she cranks her hips through close to impact.
Plyometric training involves practicing plyometric movements to toughen tissues and train nerve cells to stimulate a specific pattern of muscle contraction so the muscle generates as strong a contraction as possible in the shortest amount of time. A plyometric contraction involves first a rapid muscle lengthening movement (eccentric phase), followed by a short resting phase (amortization phase), then an explosive muscle shortening movement (concentric phase), which enables muscles to work together in doing the particular motion. Plyometric training engages the myotatic reflex, which is the automatic contraction of muscles when their stretch sensory receptors are stimulated.
If you stay reasonably composed during transition,lead hard with your lower body and try to keep up with your upper body, I would expect to see some eccentric activity running through the core. And then of course the concentric activity follows.