Request for generalized "school solution"

I searched here & could not find specific answers.

In MM what is the general/average "school solution" for setting height of 4th/low string above 12th fret for:

A hard strummer?

A "normal" strummer?

Is this the thread you need?
https://forum.ukuleleunderground.com/showthread.php?139306-Action-over-the-12th-fret

I generally shoot for about 3 on standard ukes. In general though the more important adjustment is the nut. As the old times banjo players used to say "There ain't no money past the fifth fret. " unless you get higher than 3, you probably don't even notice the difference between 3 and 5 mm at the 12th.

Then again if you think you are Jake then who am I to argue. 2mm at the 12th is the maximum.