Our school had not skipped anyone before either, after testing that showed that he was ready for the 7th grade and long discussion they agreed to place him in the 4th grade. We even had to sign that we are doing this against their advice. All the possible social issues that they presented, have not been issues at all. Our DS fit right in, has made a lot of friends. He still is not challenged enough, so one grade skip may not be the solution to all your problems, but it is a good start.