That I don't know, I got introduced to Dvorak by a friend who liked it because the layout makes it easier to type fast (he can break 120 words per minute) but I never really got into it. (Other than the use of left because I had a busted flipper.)
Everyone knows that Qwerty was designed specifically to be as slow as possible to type with right? Because fast typing makes the old school typewriters jam up? Yea...
If breaking 120 on a Dvorak is impressive, and Qwerty is slow, does that make breaking 120 on a Qwerty more impressive? I'm asking for a friend *cough*.
Your "busted flipper" phrase has me thinking of the Hogan's Heroes episode with the British commando with the busted flipper. Ever see that one?