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Title: useless!!
Review: This is a complete waste of time. I bought it thinking that from the title "boost" it may have something to do with jumping. I got helpful advice like "don't forget to keep your feet in the footstraps"! This really doesn't help at all unless you're a complete beginner, never seen a kite before, etc. IT HAS NOTHING TO DO WITH JUMPING, BOOSTING, ETC!
