With regard to "eligibility" to try out:

ANY player of the appropriate age is eligible and invited to try out for either the boys Development Academy teams or the girls Elite Showcase teams. This includes players who are currently rostered to SCYSA teams, regardless of whether their "seasonal year" is completed. No, player, coach or club is subject to sanction by SCYSA for attending these tryouts.

The above (with the exception of the "invitation") has been acknowledged by SCYSA