Ok, the Analysis plus guy Mark e-mailed me back and asked me to take the post down. It's deleted now, but I think it'd still be cool to discuss it. He recommends that if you have any questions it's best to call them on the phone. I'm still skeptical, but I'll respect his wishes.
If anyone wants his explanation, PM me and I'll send it to you. I just don't want to post it here publicly.