A modified retainer would be preferable, if that could be used instead of the ALF. I couldn't confirm it because there wasn't a whole lot of info, but I thought I heard that ALF requires those headgear posts (whatever the correct term is) bonded around your teeth?
The Crane employee I emailed didn't reply when I asked if there's any more patient before/after photos besides X-rays, which was very disappointing considering the "years of testing" their site proclaims.
Trying to attach the photo keeps bringing up a message saying "the upload folder is full", so here it is: