Baby sign language

My son Alden is 4 in September. He has Apraxia, which is a speech disorder.
Progress has been slow on the speech side according to the therapist, but I
feel he is doing great compared to how he was.
He had at one point zero understanding. Now his understanding is great for
his age, but he has limited vowels and can't pronounce constanants.

I thought about signing for babies (like for drink), for Joseph and
hopefully Kamron, to help avoid the frustration babies have before they are
able to talk. I also plan on starting this with Alden, he does speak but
it's not very clear, and we usually guess what he is saying.

Have any of you already started signing for babies/toddlers? How did it go?

My pack I have ordered says some babies can start signing from 6 months.

It's sounds like it's worth a try, as babies that can sign find speech comes
more easily. Some people believe signing delays speech, but i'm told this is
not the case.

--
Andrea mom of -
Peter 7, Ellie 5, Alden 3, Joseph 21 mths & little munchie man Kamron 5
weeks!
Married to David since 2000.