Ask for the scores. Our school tested our DS and didn't share the scores with me either, but you have the right to know your child's information, including test results.
As for DYS, I think one of the biggest benefits is the connection with other parents and HG+ kids. True peers for these kids are hard to come by, and DYS can be a big help with that.
I also covet the free counseling about the child's education. (We applied to DYS in Feb. and hope to be admitted soon. Fingers crossed!) The older your DD gets, the more problems you're likely to have with placement, and I know that having a free expert on tap is sounding like heaven to me right now.
There's also financial assistance from DYS available for things like private schools and computers (etc.) for families that qualify.
