Hell yeah, I myself haven't done such things yet. But 200 WPM is just a statistic. It is a potential. Every single factor can be maxed out. But when you're applying them all at once it's harder to keep track of each one and "make it good." Therefore, practicing on every individual factor, for instance, how fast you can type the word "the." If you think about it you can type it seemingly instantly. However, when you're typing a sentence, applying that is a lot harder. But it shows that the limit is not reached. There are of course certain words like "bannana" that do have a limit, and that's how fast you can press the same key with one finger. And on top of all of that, accuracy. And because of accuracy I think it is best to practice every factor individually, and then use typing tests such as this one here, as benchmarks.
We have the 140 WPM limit, the site's author (@marc3 I guess) put it as the top for human beings, I guess. But using stenotype, for example, it would be feasible to reach the 200 WPM for human hands. The histogram shows us the common human limit here is 120 WPM, not so far from the guiness result.