He does use signs proficiently and has for 18 months or so. I suspect it would be a bigger issue if he didn't sign.
Signing is another beast all it's own. I have read and heard from a few of my friends that signing slows down the verbal. Is this true? We were going to use signing with DD but her verbals were so early I just did not want to chance it. I still would love for her to sign b/c I learned as a child (around 5) thanks to this amazing elderly woman I had befriended. She was blind and deaf and the only way to communicate with her was through signing the alphabet. Every time we went to the home I always went to visit her and would not trade that time for anything.
