Looking for a specific Gregg document

I remember reading one about the importance of a steady writing rhythm versus a frantic and uneven style. The issue is just as relevant for machine shorthand and I was hoping to pass along some old wisdom to a student. And so it doesn't seem like it's something I just made up ;)

Thanks for any help! The document might even be on this site, but I'm not sure which one it is.

(by Erik for group greggshorthand)

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