It seems fine to me. I thnk a lot of body builders on cut cycles do this. Maybe only for a day and not a whole week, but as long as you're staying at maintenance, I think it will be fine. If you're doing it while lifting heavy, I really, really don't see a problem with it. It might benefit your performance in lifting, although after only a week, I'm not sure how much. I know sometimes 're-sets" can jump start loss again as well. In the end, it's all a grand science experiment, and you'll just have to play around to see what works for you.
I am 5'4".
Starting Weight (4.6.11) 164.6
First Goal 130 - Reached September 2011
Currently maintaining under 120 and working on changing my mental image of myself!
| current weight: 136.0