Okay, that's not shabby. But it's wrong. There is a distinct problem with their test, which is this: It's not concrete sentences. I don't write in jumbled up garbage. Even when I'm reading something else and typing it, I don't type in jumbled non-sequitor crap.
So, I dumped their version, ignored whatever they wanted me to type, and typed what came to mind. I scored higher. 75 to be exact, and I think even then I hadn't really hit a good stride. The difference is that my brain has to process each word in their system as I type it, because it doesn't make sense. I can't attempt to parse ahead and type at the full speed of my thoughts. Remember, I read slowly. And if what I'm reading doesn't actually make any sense, then I read even slower.