People can read my stuff. How reassuring.

I've just tested some of my work against an on line program called Writing Tester, at http://www.writingtester.com/. It tells me that my work could be read and understood by a US seventh grader, which is about the level I was aiming for.
Apparently there's an established Readable Score & Grade Level formulae, used for working out how readable text is, by counting the length and type of words and sentences that are used. Ideally, of course, I could (and do) use real live humans to read what I have written, but the software versions can give a quick 'heads up' when the writing deteriorates into technobabble.
The struggle is always to find a way of using simple words and language to explain complex terms. How do you simplify legal requirements to a point where they are understandable to most of the population, while still keeping it accurate and complete enough to explain the concept in full? I think this is why, without having thought about it too much, I have enjoyed using stories with morals and simple analogies as teaching tools in the past. I'd love to, but haven't the time for, converting some of my lessons to comic book form, but perhaps that could be a direction to explore in future.