It's the gap where you still have a full-time job to do along with those expectations that I fall down. :( Maybe it's to late for me?
That aside, I have never had any problem with productivity as a developer. As a "typist", yes, but not as an author of software. It just never comes up. Do I feel less "cool" when I am in a room with people looking at me type? Hell yes. But am I actually getting things done slower? Probably some things. Typing commands, yes. I could be faster there. Typing code? Maybe.
Just adding the perspective of a long time 6 fingered typist (occasionally 7).
Huh? Don't most of the exercises and games start with rule 1: "don't look at the keyboard"? "I can do all of the exercises, play all of the games, but I have never been able to make the leap from looking to not looking at the keyboard."
Huh? The exercises and games I did all start with "don't look at the keyboard"?
Find a method that starts with having you type nonsense sequences of letters on the home row (these typically start with repeats of "asdf jkl;", changing to random sequences once you got the hang of that), extends that by adding qwer and uiop, moves to words containing those letters (moving to words is essential as it trains you to do the common sequences faster), etc.
If you find you cannot not look at your fingers, place a tea towel or other light cloth over your keyboard and hands and try again.
Resign yourself to typing with a cloth over your hands for a month or three. Plan for being a dog-slow typist. If you have been typing for 30 years, you have what you need cognitively. You just need to force yourself to perfect the final bits of the skill. You don't need more training, you don't need perfect Home Row Placement (I can do 110 and my form is a mess!), you just need to power through that horrible period.
I haven't completely given up hope. I may still do it yet! :D
There are many kitchen tools being marketed to casual home cooks, and not professional chefs. The solution isn't for everyone to become a professional chef to stop those products coming to market, it's for professional chefs to recognise those products are not meant for them. Even if the manufacturer used to tailor to their needs before, markets change.
My sister's boss at her first internship took her to her desktop and gave her a keyboard which had absolutely no markings on it. Her first task was to force herself to learn to touch type.
And she still credits that to saving so many hours in college, simply while typing out esssays, and has obviously been tremendously useful in her professional life.
I spend much more time thinking about what I'm going to code than I do typing it out.