Distance of tonebar against shelf?

[Krischu]

Is it documented somewhere what the typical distance between tonebar and the shelf should be? That is, how far the springs should be "squeezed" down?

I see that the more you squeeze them down the better the hammer reaches the tine when playing with low key stroke force.

EDIT: Found this documented in the manual as "escapement adjustments"

Nonetheless, is there a way to influence the hammer action? I'm noticing some hammers not hitting the tine when actuated with low force.

[sean]

That is the whole point of adjusting the escapement... If you want the tine to be struck with very soft actuation of the key, reduce the escapement.  (Yeah, squish those grommets a tiny bit more.)

Sean