key pedestal height irregularities

[james]

So in my quest to fix B above middle C, I succeeded in re-gluing the felt to the hammer with contact cement, which seems to have done the job. But the hammer is still hanging way too low!  After swapping parts around to determine the cause, I discovered that the pedestal block for that particular key is 1/16" shorter than the others.  Has anybody else run across this?  I'm 99% sure the keybed is 100% original, so this would have been a manufacturing defect.