My thing is: If you have something to say, just say it! Don't worry that it's not long enough or short enough or doesn't fit into some mold you think it needs to fit into. Just say it. As you write, you'll probably start to see your ideas more clearly and you'll start to edit and add color or clarify.

But just say it! Bypass the middleman who's just going to make it blurrier or more long-winded.