Please ignore "amendment" in first post on thread. A breakthrough last evening completely vindicates my original discovery of 9-9-17, which is clearly expressed below:
Note: 36 years of playing flat wrong left me with a dystonic i finger; the tip joint tends to contract early and I was holding tension permanently on the i finger, failing to release the largest segment during (not after!) The pluck itself, which is necessary and makes all the difference.
Since my discovery, which I have second guessd a million times since that amazing day, I had still been holding the largest segment of my i finger in toward the palm, artificially and unnaturally, at all times.
Yesterday I made a conscious effort to focus only on the i finger and literally (and aggressively/ with conviction) yank the i finger's string straight towards the i finger's own main knuckle joint, activating only the tip joint of i to do so, *ensuring that the largest segment of the i finger kicks up/ out away from the palm as far as is natural for it to do so, during each and every stroke if i itself.
My original discovery of 9-9-17, 10:45am central time U.S. works perfectly and shall stand forever!
Discovery was/ is:
Tip joint is sole activator of pluck, aiming plucking finger's tip precisely towards plucking finger's own main/ large knuckle joint as its intended target. Simultaneously relax the middle and main joints.
This results in simultaneous passive contraction at the middle joint and simultaneous passive extension at the main knuckle joint.
All movement at middle and main joints is sympathetic and passive, during the pluck. This passive movement at the larger two joints occurs as the result of the tip joint's contractive trajectory being so narrow and immediate that it attempts to direct the string straight towards the plucking finger's own main knuckle joint as its intended target.
Due to the laws of physics and geometry, what actually happens is that the string is directed downward, into the top of the instrument. This is true only if we execute precisely as I describe.
This entire process must occur only with the finger having been presented to the string with the most feather light possible touch from the main knuckle joint, which does in fact desist completely at the moment of pluck.
The most important (and difficult) finger to do this correctly and consistently with is the i finger due to its location adjacent to p and due to the fact that the i finger is the neurological leader of m and a.
There is a clear symbiotic relationship between the lightness of the presentation of the finger to the string and the tightness or narrowness or immediacy of the tip joint's contractive trajectory during that joint's sole activation.
"Lightness and tightness, a symbiotic relationship".
Rest stroke and free stroke employ the same technique; the only thing that changes with rest stroke is the orientation of the hand, such that the follow through the rest stroke is artificially terminated at the adjacent string.
36 years of playing flat wrong left me with a dystonic i finger, which also showed up as symptoms within other fingers. The I finger is the culprit and the one to watch.
Videos with definitive proof are on the way.