In general, you should use a split step take off for a kong. That is, you should go into the kong off of one foot and in stride. By in stride I mean that it should be a smooth walk/run (don't stutter or jump before the vault). But, if you need more height to kong a taller obstacle you might try a punch takeoff. That's essentially running at the obstacle, taking a small hop forward, then exploding off of both feet at the same time. It would be a lot easier to demonstrate than to explain with words. You should come to some jams sometime. They're a great way to learn. If you're ever in Oklahoma City let us know, we'd be more than happy to train with you.
