I was actually able to swap some x days this month and the pre posted rest is a mess. Before my swaps, two 3 day blocks had pre posted rest at 0600 on the last day. I madejswapped x days and made both of those 4 day blocks now and the system added an additional 0600 rest on the new last day. So for a 4 day block I'm only available for the first 2 days. Great for paid time off, not able to pick anything up to grab some trips with soft pay though. And I'm sure it's really messing with the reserve available