I worked with an ALF doctor, but he put me in the Twin Block, not the ALF. In his office, I saw some crazy amazing results on young children. These little faces were completely transformed; they looked like a really good before and after from surgery. With adults, I'm suspicious. I'm sure there are adults who this could benefit, but I hate when patients, who clearly need surgery, are lead to believe this will 'fix' them. I just think people need to make sure they are a really good candidate and do their research.
I don't know how to specifically answer your questions because I'm a little confused, too. If anyone ever claims this can move an adult maxilla forward...I could obviously be wrong, but I'm pretty sure that's impossible.