Re: The obvious problem....
What Natway said was "You're starting to seem obsessive" with the key word being seem.
That is a question of appearance.
I get that you are seeking an answer, just like many others here, it has not been made apparent.
I wish that you would understand that I too am a seeker and that while I do strongly promote what I have found, I know that my work is not done yet. Because I sell a product, it appears to you and to some others that I push this product solely for financial benefit.
That appearance is not correct.
First, I promote all zappers because even the $10 zapper from zapper plans has some benefit. Every zapper that is made, if actually functional, has some benefit in killing various microbes.
At the same time, there are better zappers that do a better job even if not perfect. Any specific attribute that makes a zapper better can be copied or duplicated. I generally make from 10 to 20 new prototype zappers a year for testing and evaluation. I am currently producing a new board with 6 different prototypes on it with some new improvements.
As for killing helminths, the difficulty that I have had is that while I have had some success and some others have had success, this has not been perfected. There is some work still to be done.
Those who have a serious need for a serious zapper should get their zapper from the most serious zapper maker available.
On the other hand, I understand your disappointment with the products that you have tried, but please do not direct that disappointment unfairly at products that you have not tried.
The protocols offered by Dr. Clark are a good start but have not been perfected. It is better to study and offer suggestions for improvement than it is to just sit and criticize.