@aggroed, resteemed this post to my followers. Also, I believe someone found a way to power down while still being delegated. It's a workaround that I am going to try as I want to power down for one week, but not have to pull delegation.
I also know there is a request in github to add a power down slider in order to resolves this.
Vessel does it, but it looks like he's doing a full power down.