How to avoid widow and orphan lines, while also avoiding too large gaps appearing between the paragraphs on the previous page?
I figure that to strongly discourage widows and orphans, one would use a high but not infinite
\clubpenalty value, such as
This in turn makes TeX to stretch the spaces between the paragraphs on the previous page, and one tries to strike the balance with penalties, so that the extra paragraph gaps are usually not noticeable.
However sometimes the difference on facing pages is really noticeable, are there other techniques or internals penalties to avoid this?
What are the manual correction techniques apart from