CBG, thanks for the followup. I will add my recommendation for Eric Henderson as well. He did a great job with a CLA and shutter service on my 6x7 MLU and also took care of several minor annoyances on the camera as well.
While I am it, another question related to this thread: is the 1/2 EV shutter speed modification still available anywhere? If so, who does it, and can it be done on the older 67's like my 6x7 MLU, or is it just for the 67II?