Yes, I've been working more on this lately—working on loosening up, getting more imagination into my poems—more imagination and more movement.
The trick, for me, is to write loosely and expansively without being sloppy. Even when I'm trying to write in a more ebullient—dare I say spontaneous—voice, I still want to pay attention to repetition (of the inadvertent kind) and line endings and music. I still want every word to count.
(For years, I was very strict about repetition—as in "don't, ever." Now I've reached "don't, unless you do it on purpose and you're damned sure.")
How do you loosen up? Or do you?