I used to make them. About 20-25 years ago. Still have a lot of components to complete. I decided to try a name brand to see if I was missing something, so I bought used Taylormades. Minimal difference from what I saw. I did notice one thing while researching shafts, and that was spine alignment of the shaft does seem to make a difference. I did a simple manual test, vs doing flowing, etc. The one set I did with the spine pointing to the target was remarkably consistent through all clubs (3-Serah Williams). Unfortunately, they were steel and my graphite shafts were about a club longer, so the grandsons got them. Got my start through the Golfsmith clubbuilding classes (in Norwalk?).