This article does a great job outlining everything.
I've gotten used to using 8px grids as a fairly firm guideline, and so far it seems like the closest thing to the "golden unit" from my POV. It isn't too limiting as the 10px grid can be, and isn't so fine that you and your team struggle to grasp what the patterns are which a 6px grid starts to suffer from.
I may stray from it here and there but overall its a solid way to simplify sizing and spacing units when multiple teams are involved.
This article does a great job outlining everything.
I've gotten used to using 8px grids as a fairly firm guideline, and so far it seems like the closest thing to the "golden unit" from my POV. It isn't too limiting as the 10px grid can be, and isn't so fine that you and your team struggle to grasp what the patterns are which a 6px grid starts to suffer from.
I may stray from it here and there but overall its a solid way to simplify sizing and spacing units when multiple teams are involved.