10 years ago by
A Pianist
In my post, I wanted to avoid giving ideas for the training process itself, , in order not to interfere with what I knew you were going to say.
I was rather talking about sensations in the fingertips during actual execution at full speed where we can no longer really control the separate elements. I have a hunch, however, that the nail joint element (or alertness of the fingertip/fingerpad if you wish) may be a clue to help solve the problem Eric is experiencing (supposedly "loss of power"), and if I were him, I would pay particular attention to that element in slow practice while at the same time following your instructions to the letter.
P.S.: Here's what I always say to my students. Simply swinging/dropping the whole finger into the key from the hand knuckle creates truly explosive power when done correctly, but that kinetic energy should be aimed/focussed at the correct point, the fingertip/fingerpad, which should always be "bounceable" (a word I use to express that the nail joint should never be passive nor rigid; just ready).
Paul