Some observations on style from Thomas Weaver in a talk at GSAPP, Edit or be Damned:

I personally quite like the parenthetical form —writing in parenthesis after a sentence —which gives that slight ‘side of the mouth’ aspect of writing. As if there’s a slight degree of schizophrenia in the way someone is actually revealing an idea, but it’s nice, it just shows there’s another figure there— you can be slightly cheeky, or you can be more iconoclastic or you can be a slightly different person through parentheses.
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I like ending a paragraph with a form of synonym; of saying the same thing again but ever-so-slightly different. It also provides a link to the next paragraph.

Slightly less confident writers always leave everything in a rather abrupt way, so paragraphs are entirely autonomous: you never get a kind of link, you never get a flow. The best writing is read fast. It’s really pacey. So word counts don’t really matter to me so much. I’m much more interested in pace. A bad writer can write a really slow thousand words, and a good writer can write an incredibly fast 10,000 words. So I just want pace, all the time.