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Lunging the bike isn't only a display of good understanding regarding bike\body separation, it's also a very useful move for example with drops or roll downs.
The lunge can be used for dropping off safely, it does require a good lunge move as well as accurate timing, but you can practice safe and small before building confidence and progressing to larger drops.
The stomp is a quick and super useful move to preload and unweights the bike. We will be visiting this technique often as it is used for wheel lifts, jumps, bunny hops and rolling over rough terrain.
Using a quick stomp we can send ourselves off a drop off with minimal movement and maximum balance. This is actually Shaums's preferred drop technique!