Brands like Pagid, Mintex, Ferrodo or Carbone Lorraine indicate the coefficient of friction, often they even publish the variation curve of this coefficient as a function of temperature.
I opted for the dual MC system to be able to easily adjust the front/rear distribution, due to the replacement of the OEM rear calipers with 4-piston Brembos.
I don't think disc wear is a big problem, I don't plan on driving tens of thousands of miles a year. But if that's the case, I'll make the changes to the disk mounting suggested by Doug.