Ahh overhooks and underhooks. They go together like peanut butter and jelly, spaghetti and meatballs, Ritchie and ladies night at the lamplighter. But unlike that last example, this is a relationship we can seek to understand. The first thing we need to know is how the two aspects work. We need to know what the tools do, then we can understand how to use them.

The underhook has two main jobs. It can pop people up. This is done with the front of the hips. Think lateral revolution. It can also bump people up. This is done with the back of the hip. Think O goshi.