I bought the Edison 2.0 heads only because I already had a set of premium shafts that I wanted to keep using. The heads were exactly as described, the quality was outstanding, and installation was straightforward.
After getting them built, the performance has been excellent. The wedges are incredibly forgiving, especially on shots struck a little high on the face, and the distance consistency is noticeably better than my previous wedges. They also produce plenty of spin without feeling harsh.
If you already have shafts you like, buying the heads only is a great value. You get all of the performance of the Edison 2.0 without paying for components you don’t need. I couldn’t be happier with the purchase and would definitely buy them again.