I learned to type on Dvorak 20 years ago and my ability to type on QWERTY still did not recover to even 1/5th of my previous speed.
It is pretty embarrassing sometimes.
On the other hand I use completely unmarked keyboard which coupled with Dvorak makes me largely invulnerable to pranking by coworkers by writing mail in my name (assuming I forget to lock my workstation which happens about twice in a decade).
I learned to type on Dvorak 20 years ago and my ability to type on QWERTY still did not recover to even 1/5th of my previous speed.
It is pretty embarrassing sometimes.
On the other hand I use completely unmarked keyboard which coupled with Dvorak makes me largely invulnerable to pranking by coworkers by writing mail in my name (assuming I forget to lock my workstation which happens about twice in a decade).