If it's out of the SOL you might have some leverage,the worst that can happen is that they say no,you won't know till you try.
In Feb I started with 9 CA. NONE of them were settled for the full amount owed....that being said ALL of our debt was old, from 06 at the latest. I think that's one of the reasons I got "settlement" PFD's. They were all settled for between 25% and 75& of the balance.