FadedFrontiers if the Duo’s motor can handle it what’s the issue with other users swapping burrs out if they want. Niche may as well sell carriers as there’s already some demand for them. I thought there was a risk of future untested burrs causing problems like with the GG and NZ but that seems unlikely.
I think you will only get an answer to that question from Niche. Most manufacturers of things, don’t like aftermarket parts being installed for various reasons…something only the manufacturer can answer, if they choose to do so. On here, any discussion as to rationale is simply going to be speculation.
As for what users do or don’t want to fit, it’s entirely down to them….after all, it’s their grinder, their money and their choice
FadedFrontiers Niche can not recommend swapping to other burrs and also sell a spare carrier, win win for them.
Not quite sure what this means, do you mean “now” rather than “not”. gain thought, I am sure they will welcome your suggestions on how they can get a win/win.