I also have a three draft process. First draft, ideas, etc, I do by hand, with a fountain pen, just any old where. Coffee shops, beaches, etc. Second draft on a good old manual typewriter. Third draft, on computer, for easy editing, fixing typos, etc.
I learned to type on the Smith-Corona manual, later had an electric, but was an early adopter of computers, which became available just in time for writing my dissertation. It was a Kay-pro four, used a CPM operating system (on floppies!), and the word processing program was WordStar. There was no WYSIWYG yet, you had to embed commands in the text, had no idea what it would look like until you printed it. What a PITA it was. But a tad easier for the footnotes in the dratted dissertation. I had to buy a special daisy wheel for the printer for the foreign language words.
But now, I have 4 manual typewriters. One that dates from the 1920’s, that I bought at a flea market in Zürich in the 1980’s, two that I found in “antique” (junk) stores, and one that I bought online from Germany, for the umlaut letters. I love the sound of the keys hitting platen, the carriage return, and the bell. They are the soundtrack of creativity.
Oh, but whoever thinks their old manual typewriter might be worth something, think again. Some junk shops I went to in search of typewriters had thrown out ones people had given them, because they couldn’t sell them. Then again, that was a junk shop in a small, rural, economically depressed part of the country. Typewriters in big cities with people interested in retro tech might do way better.