@totem395
You are looking at this upside down -
the objective of a high mass platter is to make it immune to stylus drag.
How heavy does it need to be - Brinkmann says 15kg minimum, Kuzma claims similar.
Kuzma says stylus drag cannot be eliminated completely - so it boils down to heavy platter, high resistance to stylus drag vs light platter less resistance to stylus drag which would require fast and smooth non invasive speed correction.
So it comes down to which is the lesser of the two evils - very small stylus drag effects on a high intertia platter, or larger speed errors corrected more vigorously on a light platter.
Unfprtunately cost always factors into design high mass platters with sutiable quality bearings are not cheap.
You are looking at this upside down -
the objective of a high mass platter is to make it immune to stylus drag.
How heavy does it need to be - Brinkmann says 15kg minimum, Kuzma claims similar.
Kuzma says stylus drag cannot be eliminated completely - so it boils down to heavy platter, high resistance to stylus drag vs light platter less resistance to stylus drag which would require fast and smooth non invasive speed correction.
So it comes down to which is the lesser of the two evils - very small stylus drag effects on a high intertia platter, or larger speed errors corrected more vigorously on a light platter.
Unfprtunately cost always factors into design high mass platters with sutiable quality bearings are not cheap.