Began styling with bourbon, neat, bitters. Began move to HAML

OK, so the files will be compiled on the fly when necessary.

About your question, the docs for this sass rack plugin state:

> Put your Sass files in public/stylesheets/sass. Your CSS will be generated in public/stylesheets, and regenerated every request if necessary. 

So the generated files will go into `public/stylesheets`. Why do you need `public/stylesheets/css` for anyway?

And remember that all generated files should be gitignored.