I would suggest taking any PT's on LawHub and then manually transferring your answers to 7Sage for analytics afterwards. The interfaces are slightly different as someone else mentioned so it's best to get some practice on the same interface you will have on test day.

Does anyone know if this "crystal ball" is ever actually accurate?

What exactly is this "crystal ball prediction" everyone is talking about? Does the link work for everyone else? (doesn't for me)