You don't have to use your mind to think at the letter orders or positioning at all, only to "detect" what leter comes next and automatically press the right key by instinct. But you have to be focused to read all those letters... which is where I got a lil problem.
At moments, I type even faster, 10 words in 5 seconds or so, but I can't keep with it for long as if I think at a single different thing than reading and being conscious on what I type, I get slower. And I usually think at the meanings of the words, or think that the wrong is not correct gramatically.
I never trained my focusing or my typing speed until I saw this thread. But I did got some practice at typing fast... for things like counting faster on the spamm thread, or speaking (and answering questions) with another person while dueling with a different player. That kinda freaks out some people... as I win those duels. I don't chat when I duel somebody skilled, of course.
Anyway my last score, of 95 wpm with no fail is checkable on my profile, and the assurance that there is no possible hacking or cheating on this system.