memoir, when I use
\bigskip to separate sections from each other, on some pages it's a huge skip, on others it's much smaller, and the difference is obvious and noticeable. I'm using 5.5" x 3" page size, with 0.5" margins all around, so the content area is small. How can I avoid this?
Skips in TeX can stretch - this gives it the freedom to place page breaks in good positions, etc. In memoir the default setting for
12.0pt plus 4.0pt minus 4.0pt
i.e. 12pt with 4.0pt strech or shrink. You can prevent stretching using
Having said that, some stretchable space is probably inserted before sections by default; I'd need to see an example code to be sure of the correct solution. Moreover, the need to tinker with settings like this is usually a sign that you are using the wrong document class, or that the class options haven't been set correctly. Again, with no example code it's difficult to say any more.