I definitely think the author is underestimating the speeds he could reach with more practice touch typing. My average speed on that site as a touch typist at 8

I definitely think the author is underestimating the speeds he could reach with more practice touch typing. My average speed on that site as a touch typist at 83 WPM easily exceeds his maximum 'float' typing and I only consider myself an average touch typist. A total of 10 hours of practice compared to a lifetime with his current style is probably not enough to reach his maximum potential.