I actually installed Colemak on my computer yesterday. I played with it for a couple hours before uninstalling it. Most of what I type is programing code, not prose. It dawned on my that most my typing delays come from all of the parens and brackets and other programming symbols. Since all these fancy keyboard layouts have been computationally optimized for prose language, they don't address the primary cause issue. I decided that if I'm going to take the time to learn a new keyboard layout, then it will need to be one that has been optimized for programming.