I would call MS on the first day of your 7 month window. They can tell you if there is a limited number of rooms in the catagory you want. You can then decide to call daily or wait until the end of the week. They let me know about a GV at BWV for Sept and I still had a chance at 9 months. Knowing how hard getting through to MS is, sometimes one call is all I have time for. I am changing my GV at OKW reservations at the 7 month window to BWV. I hope to get a GV but will be happy with 2-2 bedrooms.