Not really. I just started doing it organically rather than learning from any given source, defined method or individual player. There was no YouTube back then, and I don't even think it had even been codified as a method or technique. It is unlikely that I follow any modern codification of the technique, and I've never tried to codify or de-construct how I do it - it just happens. Best I can do is offer a few pictures that you might be able to get something from...
1 - Over the Bridge - hand and forearm are free, just touching the face with no pressure, just a tactile reference.
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2 - Over the Fingerboard - as before, no pressure, just lightest contact.
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3 - Playing III whilst muting IV
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4 - Muting II, II and IV, playing IV
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5 - Forearm resting on the upper cutaway, palm touching the front face
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6 - A close up, playing II and muting III and IV
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7 -
"The Archaeological Record" (from '88/'89)
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