I am a diehard notebook user, but when it comes to writing longform, I can’t get very far without switching to my laptop. In part, this is a matter of physical stamina: not since my blue book days have I written long prose for long stretches (the fingers buckle, the hand cramps).
Cognitively, though, I seem to compose more comfortably in the cut and paste and delete mobility of a keyboard. Writing longhand takes more time, and though I know I should be able to work out the lines in my head in a similar way, I can’t seem to actually do it. And though I’m a fairly unflagging self-editor, I find it harder to follow the lines when everything’s scratched out, circled, or arrow pointed somewhere else.
Do you write full drafts in a notebook? At what point do you switch to a computer?