I just talked to Brett Miller about the B1Ba M/C head. I have a set and I am considering changing out my W5 for them. He is currently working on a CNC program for them. It will be about Christmas time before it is available.
based on everything I have been told about the moved center head, and the several I have seen results of in running combinations, I tend to believe everything people have said about them over the years.
Bad design, underachiever. I don’t think they are as good as a w5 head, then nothing fits them either