The symptoms of die-off are basically the same as those for radiation damage.
If you have a large amount of die-off on the first try and significantly less on subsequent tries, that is an indication of success on the first try. But if you have repeated die-off, day after day, then this is not success but just breaking even or worse.
When i mention "die off" i mean parts of worms/lavaes not mucus only.
Actual visible? or neurological responses that feel like they might be worms?
This is a good question, and for some contractions i can see the skin moving, for others contractions i can't, it is inside the body.
I understand what you mean when you say that electromagnetic radiation may be harmful for the human body, but for know i am doing some tests only with a low intensity at 1000Hz.
To be more precise, i don't say that using a combination of an electromagnetic field with a frequency and a magnetic field will help to kill all kinds of parasitic worms in all parts of the body, but i say that even after all the tests that i have done with different zappers, different intensities, different frequencies, i was surprised to feel crawlings/contractions in my head, and then evacuate what was clearly worms/larvaes parts, not only mucus.
It confirms what i thought for a long time : the zapper electric signal is not able to reach all parts of the body with enough intensity/without distortions, so it may kill some parasitic worms/larvaes but not in all parts of the body.
Your efficiency equation is off topic, i don't care how many power a device needs if it is really efficient to get rid of parasitic worms.