[w0000t]

Actually 'b' is at a completely wrong position( on a ordinary keyboard ). It is inaccessible for both hand, without moving your wrist which causes strain.

I have globally remapped 'b' to the right of 'l'. It feels much better. The old 'b' key is now unused.

[rifung]

Maybe I misunderstand but how can being forced to move your wrist cause strain? Your wrist moves all the time in day to day activities.

If anything I would think keeping your wrist in the same position too long would cause strain, especially if it's unrelaxed.

Even in piano, if you have to play the same notes many times, you are supposed to move your wrist slightly so you aren't doing the same movement each time to prevent injury.