I think most of these test mean jack-sh... because if you guys are taking them over and over again, it becomes practiced.
So, essentially when you have a precog. awareness of what you're typing, it is no longer off the wall.
For example, Insy's been a member of typeracer for many years, but the Texts on the site has not changed, there are only about 30 different strings,
so he's essentially typing the same 30 lines of text over and over again.
Notice sean wrona's average sustained speed over an hour is only 150 or so, while he can burst 230 on practiced material such as typeracer
Which is why sustained speeds on NON-practiced text is the truer measure.
For example, using the 1 hour tests on Hi-games. but of course their library is limited as well.