Werner, I think you have a good point. However....I called for a 7-month ressie at HHI for the last week in February (see previous post), and called at the first day. I then asked the CM if I really needed to call day by day or if I could wait and call at the end of the ressie time (I didn't really want to have to call day by day if I didn't have to). She told me there were 12 studios left for the first day (a little less than half), and she couldn't promise that they wouldn't all go within that week. She strongly recommended that I call day by day.
If I weren't quite so set on my dates (I'm a teacher and have to go only during the vacation week), I would have probably taken a chance and waited until the end. Or if I were willing to take a 1br or 2br instead of a studio, I would have felt comfortable about waiting. But I'm being picky about both the dates and the accomodations this time, and calling day by day worked best for me.
My next ressie will be late spring of 2003 at BWV at the 11-month window, and calling day by day won't be quite as critical for me. I wonder how many of us do call day by day instead of waiting until the end of the week?