Just wanted to throw this out there. I have been jamming emails all day, and forced myself to use landscape only, just to better train myself. I have become quite fast. These are my settings.
Tap Interval 500.
Hover Period 100.
Key Rate Fast.
(these may not work for others, just what i have found works best for me)
Also, a huge one is try and not let your thumbs cross the center plane. It will be tough for me, for i have found i used to use my right thumb to type A E & R and on the surepress it always miss types. I would also use my left thumb for K and same thing. I know these are poor typing etiquette habits, but i have found that if you keep the thumbs on the correct side of the QWERTY, things will be accurate.