I think it was the original reason why USYSA was looking to change the process (to June). In theory it would be more correct to hold tryouts after regionals ..say late June or July... problem is having people at tryouts due to vacations etc.
Since school lets out early in the south this causes a problem. Another problem is the antiquated process of registering teams. with large numbers leaves little time to do the paperwork. I would love if the US Club Soccer process was followed...