I am working with a designer that wants to do a custom build instead of using Thesis or Genesis. He states we would mock it up in something like Dreamweaver, then convert it to WordPress.
He mentions that it would be faster and would not break during WP updates.
What are the pitfalls to doing something like this? Are there some specific things I need to worry about?
I'm afraid that is will look good but may not function properly or if he ends the relationship of being my developer, it would be tough to find somebody to work on it.