True Dowsing is a Mental application, such as Map, Photo, and Information. Meta-Physics, psychic output from the sub-conscious, via a trained (programmed) mind/muscle ideomoter response. It's triggered by an internal stimulus.
When the Rod(s) are used in a field search application, too often physics come into play. External stimulus such as Magnetics, and possibly other factors (physics) appear to have an effect on hand held Dowsing Rod(s), as well as wind, weather, rough terrain, etc, when physically searching for the emanating "field" of chemical elements.
MFD, HID, LRL, and most directional locators are used in a physics application, Not a mental Dowsing application, as some here seem to insist. In fact, most of these configurations would be difficult, and impractical tools to use for mental Dowsing.
I use a needle & thread and it's a great tool for Dowsing, but not so good for a physics application, unless of course, you use it to sew, or remove a splinter.
Certainly, there are those who don't know the distinction, who will unwittingly try to intertwine dowsing with physics. This can be confusing and cause inaccuracies for the inexperienced. The correct interpretation of the reaction of the Rod(s) is different in a mental dowsing application, than it is in a physics application.
The term "Dowsing", when associated with a physics application of the hand held rod(s) is an inaccurate misnomer. It is often mis-labeled Dowsing, when the definition is taken out of context. One terminology does not fit both.
O.K. you seem to correctly be making a distinction by not including Map, Photo, & and Information Dowsing in your categorization, so to avoid confusion among viewers I suggest leaving the term "Dowsing," and mind/muscle "ideomotor" response totally out of a discussion of physics, and their effects on Hand held L-Rod(s), lest Skeptics continue to demonstrate their ignorance of these subjects. Swallow your ego's,(don't choke) and decide to become serious about learning, and stop bashing & mocking those who do have at least some working knowledge and show them respect.
That's certainly a joke, that I will see egotists, and pretend scientist posting on Carl Morland's forum who are open minded to learning from a 6th grader? To me, It's a sad commentary for the skeptic mentality, but even if I live to be 100. I won't live long enough to see that happen.
Dell
So, Continue what you know best. CUE: Mocking and bashing, please!