It worked.
I'm fast at Dvorak after 4 years (90 wpm), but not as fast as I was with Qwerty (120 wpm).
Dvorak has a pleasant "rolling" finger feel and my wrists never ache, so I've kept it.
What fascinated me about learning Dvorak was that I felt like a stroke patient. Suddenly, I could not do something I had been able to do for years.
It made me consider the cost of a keystroke.
Great experience.