Hello,
Some users still set text style height values but I believe that it became more common practice to utilize dimension styles to control dimension text height for many years (leaving text style heights set as zero).
When using your annotative dimension styles you will get the height that is set for your dimensions whilst working in a desired annotative scale.
I place dimensions over a properly scaled viewport in Paper Space.
By setting that viewport scale and selecting object points for dimensions, the annotative dimension style understands how to apply correct length measurements to your desired scale but keeping the 3/16" dimension text height. If you edit your dimension style later to a new dimension text height of 3/32" then you will see all of the dimension text change size as soon as you exit the style manager.
Note, you may also see some dimensions snap into or outside of extension lines due to Fit settings that are dependant upon text height/size.
Similarly, you may use the annotative styles in Model Space and achieve the same effects when dimensioning.
As for a standard... for imperial drafting I typically stick to increments of 1/16" and 1/8" increments for my text heights. corporate standards within your organization, or that which you are supporting, may dictate the dimension feature settings you should be using. Also, work you do for public entities may have a complete design guide that must be followed.
Hope this helps a little,
Blaine
Blaine Young
Senior Engineering Technician, US Army
