Tone and writing speed

I think about process the way some people think about media fandom. It's one of my minor obsessions. I find writing process -- or perhaps creativity processes -- fascinating because we're all so different; I find them fascinating because even if I can't approach or think about my work the way other writers think about theirs, some glimmer of commonality can make me recast what I do see in my own work.

So what I've been thinking about recently, thanks to desperance, is tone, and the way tone affects (my) writing speed. Tone also affects everything else: Character, viewpoint, pacing. But, today, speed.
( Writing speed and tone, some thoughts below the cut )