In a document, I defined two macros like this:
\newcommand*{\topless}{\setlength{\abovedisplayskip}{0pt}} \newcommand*{\topmore}{\setlength{\abovedisplayskip}{11pt}}
The first macro is used to reduce the vertical space after some text and before an equation. The second macro is just a reset to the default value.
The document is written with a standard 11pt font, so this is why I used that value in the second macro. However, I suspect it's not the proper thing to do (since I may need to change the font size one of these days). What command should I use in that second macro instead of 11pt?