The postman delivered a new to me DF83 Gen 1 with SSP HU burrs. Just had fun dialing it in over lunch for espresso. It is a huge step up from the Niche Zero it replaces for espresso.
I would feel the same if somebody posted a p100 or Monolith Flat MAX, but then they also way more expensive like the DF83 with SSP burrs is vs. the Zero.
As a Canadian the DF83 with the SSP burrs is actually pretty close the Niche zero price wise due to how their distribution works. Essentially you pay UK tax and Canadian duties at least the last time I checked last year.
Short answer is price, df83 with the SSP burrs used is about the same price as a brand new df64 with stock burrs in the UK.
I decided I wanted the profile of the SSP HU burrs and the 83mm offers slightly better results than the 64mm of the same burrs. Shrinking the cuts down isn't just a question of making the same cuts smaller, it reduces the surface area which changes the way it grinds.
However I suspect most people including me wouldn't be able to blind taste the difference with just one to sample from
That makes sense, financially. These things aren't cheap!
How did you come to the conclusion that HU were the burrs for you? I'm finding it all a bit of a gamble because I don't have any way of trying out all the different burr types.