Key height and key dip

[A440A@aol.com]

David asks: inre sharps height
>Will pianists notice the difference?  How will it affect keydip and
>aftertouch?

    The limit is where the sharp ends up above the whites when it is on the
punching.  If you start with too high a keyheight, with an action that needs
little keydip,  you will needlessly make a lot of work for the pianist and the
sharps will be uncomfortably tall. 
    If you start too low, and the action needs a lot of keydip,  you will be
burying them, a condition that few people like.  The optimum height of the
sharps is to a degree, dependant on both the action ratios and the customers
preferences. 
Regards, 
Ed Foote