I have asked that question a few times since I first found these boards. I have been told by many that the crowds build in June so there is a noticeable change from first week to second or second to third. But that early June is not too bad. I sure hope so, that is when we will be there.
If it is any indication, I was able to get PS for CRT and Storybook breakfasts for the last three days in a row (for June 1st CRT, 2nd Storybook , and 3rd CRT). I did call right at 7, but I have seen times where people said they could not get PS even with calling right at 7.