September will also be a vacation month (as one of the vacation days falls on the next bid period). I'll end up with the first week or more off in September, since I'll only have to meet 65 hours on my award. That's a month and possibly more off. 3 weeks vacation a year, 6 vacation months. That's about a month off every four months, with guarantee, if that's what you really want.
Regardless, I didn't say our vacation system was better. I said it wasn't inferior.