I generally draft the Ur-draft in pencil, move to fountain pen, and then at some point move to computer.

Even technical writing begins in pencil.

I have serious carpal tunnel; pencil and fountain pen require breaks to sharpen or fill.

And yes, I could do Steinbeck and sharpen a dozen pencils or rotate among pens, but I am really trying to avoid more hand problems. Taking breaks is good for my brain and my hands.