.... I think that the practical guess is that once you are at a fairly high level of grinder, paying a lot of care and attention to dialling in the shots and dosing and distributing correctly probably exerts a greater influence on what you get in the cup than differences between grinders. This is great news for readers of this site for whom something like an EK43 is a big expense - which is most people, I would think! It is also great news for people who have expensive grinders and aren't happy with the results they are getting - obsessive attention to detail might improve things
This comment is really spot on. I have a Monolith Conical (not a Max but had zero issues purchasing on the site) and consistency is still an issue because I suck at dialing in.
Single dosing does kick ass though.