We were there 2 years ago this time, and we were pushing through 'mud' at 5'6" draft
on the way out the following morning (low tide). We timed the current
correctly but did not know we'd touch bottom at the entrance/exit. As mentioned you have to stay close to the side (right on the way in, left on the way out). Some folks there actually told us the opposite and we nearly ran aground, backing up swiftly as we 'felt' and saw the depth
decreasing alarmingly nearer to the right side on the way out.
The basin was plenty of water
Last year we skipped Chesapeake City...