in reply to Coding for maintainability
The second thing I'd do is take that middle switch out of there, and capture the regularities with code, and the irregularites with data. I bet you wrote a lot of it with cut and paste, and that should always be a clue.
Let me repeat. Cut and paste is generally a clue that you're doing something wrong.
On a longer-term basis, factoring out some of that code for re-use might be useful, which would also make testing easier. But unless you're also doing some similar tasks later, that might be an expense with no payback.