That is correct...I believe the original poster was saying some of it was too basic for him.
No, I was only able to leap once...thus proving I needed every lesson.
When I started with it I tested out of lots of it then suddenly ran into the more advanced stuff and the break was disconcerting so I went back to Go and did it step by step, returning to all the relighted icons as they lit up. The practice was worth it. Given I started from a pretty good base of household and street speech but I have to actively work to retain it and all my Viet Kieu friends insist on talking English which makes it hard for me to keep up my end of a conversation in Tieng Viet. That is just the way language works on me.