So they have a product produced to an excellent standard with a somewhat flawed design. Wonder why the R&D resulted in in dropping a test version that sounds like it might have been a better performer.
Interesting that they can't machine a diablo perhaps the design is the best compromise that can be created with the tooling that they have. Don't really see why they have broken away form the more conventional head sizing either. I will try some at some point and see how they fair but the findings always seem to read very much the same.