I also Have a Hobie Signature Series Hobie 16. I took the stickers off, since they were peeling anyway.
The guy I bought it off of said that it had some new things on it when the previous owner bought it new. The boat is from 1985, so whatever "new things" it had on it are probably "old news".
I'm not entirely sure about this, since it wasn't said from the first owner, but from the second. I'm the 3rd owner of the boat.