going "with" gravity suggests an up to a down. In the hand this sends energy into impact instead of tone. Pressing back from down to up is what works. That's not going "with"gravity.
Here we have your constant misunderstanding.
You suppose that working "with" gravity can only mean one direction: downwards. Weight is a dead mass that simply drops down unless something works against it.
And you suppose that the wrongful doctrine of the "armweight school" is limited to proposing this effect.
But this is a fatal error. Fatal not for the "armweight school" but for yourself.
Because what you propose as an ALTERNATIVE technique, even as something wich is strictly OPPOSED to the armweight doctrine: "pressing back from down to up" - is a well-known and acknowledged PART of this doctrine. It's really a bread-and-butter thing which my teacher told me again and again and in many variations.
I described it in post #59:
"Put your five fingertips on the table, keep your arm relaxed, let the fingers
carry its weight and then give the table a quick pressing impuls with your fingertips. If your wrist is really relaxed it will REACT in bobbing up with this impuls. And this reaction indicates that the armweight is acting upon the fingertips. The wrist is then working like a leverage."
But, as you see, in my description, I acknowledge the important role which the armweight is playing here. Of course there has to be a muscular impuls acting through the fingertips on the table. But the impact of the fingertips is mostly effected by the armweight - working through the wrist which functions as a leverage.
To prove that most of the impuls-energy which is acting through the fingertips is coming from the armweight, you can try the exercise at the piano:
First do as described - as strong as possible, in ff.
Then you try the same but with a
stiffened wrist and only using your fingers.
The stiff wrist will cut your fingers off from the momentum of the arm; it can't function as a leverage any more. And you will find that it is nearly impossible to get a ff just by muscular strength, and that it would cause you cramps very soon if you'd repeat these efforts on and on.
- - - - - - -
Again: I think you are misconstruing the armweight-doctrine. What you're running up against are windmills.