That's good to hear about your son, shaggydaddy.
I guess I wasn't thinking in terms of signing and how helpful it could be to someone on the spectrum.
I just know with this other little guy that signing was great for him, but he wasn't learning to speak. And yes, I think he just preferred signing to speaking. He lived in our area for about a year, and I never saw him speak to anyone. He probably did learn eventually, but if someone was using signing as a stepping stone to speech, I don't think it worked that way, initially, for this child.
Kris