Every Piano has a Touch Design...
....What is a Touch Design?
"Touch Design" is a recipe for the feel of the pianos' touch, and consists of the measured, leverage, and friction in each key, using the new touchweight metrology.
David Stanwood's studies found that Touch Design recipes vary widely from piano to piano, and that when touch design parameters are very consistent from note to note, the response of the keys will be very consistent as well.
Stanwood also discovered that the combined levels of touch design parameters will indicate if the piano will feel too heavy, too light, or just right. In addition he found that touch design parameters will tell if a piano is producing full tonal energy.
He learned that when the touch design of one piano was reproduced in another, the "feel" of that piano is reproduced as well.
Stanwood calls this "Touchweight Cloning".