Yup, guides have some pixie dust to pull some rooms out of cash reservation inventory.
When we bought into BLT, our first reservaction was going to be in like 9 weeks from the time we bought.......he checked inventory and found that they could actually do it except for one night - and he pulled the extra night in from the cash inventory.
If you are booking between 11 and 7 months, I doubt there's much magic he / she would be working. But for a quick reservation it's definitely a nice perk.