Well, you seem to have no shortage of "experts" on the subject! I wrote for Vintage Guitar magazine for years & have seen & played almost everything there is. Though I have not seen or heard the device you mention, it is entirely possible that it exists. The same people who doubt it would have probably shunned electricity, the horseless carriage and the electric guitar as fads. I DO know that a wider, larger maple neck makes a difference in tone on an electric - that is, if the critics listening know what tone IS! Anything is possible so don't give up your search. You may not find what you're looking for but something better. Not everyone can afford a late '30s National Duolian. Besides, if your critics spent half the time thinking of better licks instead of deriding someone asking a legitimate question, they might know the answer - or have a better one. Keep looking my friend. Dave Kyle www.geocities.com/dkyle21