[pianotech] Square Grand Hammer Bore Length

[Terry Farrell]

Is it safe to assume that hammer bore length on a big-'ole-tank American square grand (Steinway, 1867) should be set similar to a modern grand piano - i.e. hammer shank horizontal when hammer strike point is at string level (or even a hair undercentered to allow for hammer filing down the road)?

And like not 1/2" overcentered?  :-(

Terry Farrell