Foot zoning is different from foot reflexology basicly in their method of approach.
The feet hands and ears have the nerve endings from the rest of the body that can be worked to help the body to reboot and heal.
Zoners work in various zones of feet with precise, directed pressure to the various zones of the feet.
The Zone and Reflexologist observes the foot through discoloration, texture and tenderness what and where the body is having trouble in the body.
One theory is that reflexology works with the central nervous system. This theory builds on research done in the 1890s by Sir Henry Head and Sir Charles Sherrington, who began to show through their research that a neurological relationship exists between the skin and the internal organs, and that the whole nervous system adjusts to a stimulus.
According to the theory, the reflexologist application of pressure to feet, hands, or ears sends a calming message from the peripheral nerves in these extremities to the central nervous system, which in turn signals the body to adjust the tension level. This enhances overall relaxation, brings internal organs and their systems into a state of optimum functioning, and increases blood supply (which brings additional oxygen and nutrients to cells and enhances waste removal). It positively affects the circulatory, respiratory, endocrine, immune, and neuropeptide systems in the body.
In Foot Zoning as the practitioner massages the foot a signal point is triggered within a certain zone, a message goes to the tissue or organ effected, through a reflex arc to the spinal cord and then to the brain. Discomfort is experienced in the areas of imbalance–areas where healing is needed.
I believe that both of these footwork modalities are as effective as the practitioner performing the massage. So the most important part of either of "these" besides their name -- is who is doing the work.
I have noticed that a lot of the Zoners are like some politicians in that they are criticizing the Reflexology as being not as thorough or this or that. I HAVE NOTICE THAT IN BOTH all the areas of the foot are worked. And in fact the Reflexologist is taught to also work the lower legs, the hands and also the ears.
I'm not a foot Zoner or Reflexologist though I work the feet as part of a massage.
So what you have to decide is which method or (practitioner) works best for you.