Those are very high scores! You have a very bright little boy. I would think that he would very possibly qualify for DYS if you were retested in a year or two. Those scores are very close right now. As naughtigal pointed out, DYS may not make a dramatic difference. We homeschool, so we are unlikely to need much advocacy. However, I have already found that being part of the community is helpful in many ways. As for the skip, I don't have much help there since we are homeschoolers. I think a lot depends on your son, on the school, and other factors. For example, is the preschool play bass? Even really gifted kids who are advanced academically might enjoy a play-based preschool. On the other hand, it sounds like he might be a good candidate for a skip in many ways. How nice to have the opportunity to go ahead and get that started.