Do you have a touch weight problem? This is the answer to solve it.  

Touch Weight Management is the way of controlling touch weight with the idea of static balancing weight by David Stanwood and Yuji’s own idea about inertial effect in the piano action. Looking at these two angles gives the solution of touch weight problem. Ask Yuji if you would like to get lighter (or heavier) touch on your piano.

Touch weight management for piano technicians

Touch weight management is the most important tool to analyze and solve touch weight problem of the piano action. Piano technician can learn the theory and the technique through the book, convention classes and TWM seminars etc.

Viewing both static balancing the action as well as kinetic resistance of action movement, finding out where the action can be improved to suit the clients' request.  

He has given one-day and multi-days seminars in Japan and Australia. Also he is regular lecturer at local workshop in New Zealand and at APTTA convention.

You tube video series has started to demonstrate this technique.