I assume you bang these out and go for quantity to help build a backlog for new fans to dig into and fresh releases to keep getting new content for existing fan

I assume you bang these out and go for quantity to help build a backlog for new fans to dig into and fresh releases to keep getting new content for existing fans. Do you spend much time editing the stories after you write the first draft? Or is it pretty much just a single fast second draft that cleans up the first draft a bit and then push the book out there? How many words do you aim for for each book? What do you do to promote them?