G'day all!  I have a 1914 Richard Lipp 6"4' player grand with a Hupfeld
player action.  It can be seen on YouTube under the name DuoArtDanOz.
It's pretty reasonable to peddle but it could be tighter and easier on
the feet.  My main problem is that whenever I hit a sustained section
on the roll it really drains the player more then what it should be.

Upon checking everything over to make sure it's all secure and airtight,
I did notice that the sustain junction box has a wind-nut like adjustment
screw on the top.  I can't actually see it but can only feel it with my
fingers.  I'm sure somehow this is responsible for the sustain pneumatic
either opening too far or for too long and hence using a lot of vacuum.

I was wondering could anyone on here give me some advice on the correct
setting of the sustain and perhaps what measurements I should be getting,
i.e., how high should the dampers be lifting off the strings?

Any help much appreciated.

Regards,
Daniel Cox
Worrigee, Australia