Hi List! Happy Friday! I am working on a 70's Sty B with a horrible action geometry problem. All the students and the professor hate playing it and I don't blame them! The line from key balance hole to wip has the capstan way too low making the DW close to 70g throughout.  It has a renner action and hammers.  the wips and capstans are such that I could relocate the capstans back by about 3-4mm.  Would that make a big enough difference in the DW? It won't affect the line.  I looked at raising the stack, but there isn't enough room to raise it more than 1-2mm.  Should I try both? Also, is the measurement in Steinways made from center of balance rail hole on the top of the key, or from the back of the key?  This is a new endeavor for me and I don't want to make things worse. Still green in Lincoln, Paul