Also in Michigan here. A few days ago, a buddy of mine cut off what I can best describe as runners (I guess they're very small rhizomes that had spread about a foot or so from the crown). One had about a foot of growth on it and the other two had less then six inches of green shoots. The foot-long one is withering above-ground, but the other two are holding steady. They aren't wilting, which I am hoping means they will eventually survive.
tl;dr Go for it!