I used dvorak for a bit. I didn't remap HJKL, since JK were still beside each other, and H was to the left of L (albeit, not on the same row).

In terms of transferring Vim 'motor memory' from a qwerty layout to a dvorak layout, IMO it meant focussing more on an added indirection of "which letters" rather than "which fingers where".

Funny you ask. While you were writing, I posted about a friend of mine who did that in a sibling message.

Yeah. It's really not too bad. It's certainly a little bit better if you take the ~4-10 lines to reconfigure a couple of keys. I map dhtn to hjkl and move d to j, n to l. It's pretty natural after that.

I do, and it works well. I tend to use movements other than hjkl for moving around, so that doesn't bother me too much. I don't remap anything, and my config is pretty bare.

I did for a long time and I found the switch to be painless. I then replaced most of my daily used software with Emacs.

I use vim with colemak.