This is a real throwback to many days spent "playing" Mavis Beacon in computer class. It's interesting to see the breakdown in speed on a per key basis: it really makes you conscious of the keys between your hands when you are in the home row. However, no matter what happens I still have brain farts when trying to type out nonsensical words, or words that are close to real words but still nonsense. I got really locked up on "ohioh" (not "onion") and the speed scores reflected that.
I agree, it took me a while to get somewhat used to fake words.
Conveniently, in the settings there is a way to set a source. Recently I have been using articles (via url) as the source ~2 times a week. This has helped me improve speed and accuracy (there were a handful of real words which I consistently mis-typed) without fake word headaches!
