[julespitt]

Previously, when I've researched this myself casually, I've found the technical information to be too vague, in terms of both building the devices and specifically where to place them, why - and how it all fits in to the reviewed literature - if at all.

But I certainly wouldn't expect the sort of rigor others are asking for in this thread - obviously this is more hobby than science, and I'd consider personal reports interesting despite being anecdotal.