Jaeimseu
3rd Black Belt
Amen to that. You can tell a lot about a taekwondoin by watching them do sidekick and hook kick.The thing that makes hook kick hard is that the upper leg and hip of the kicking side should move through the line of the target. Most people don't do that, they only use the bend of the knee and the whip of the lower leg. Using the upper leg and hip is much more technically demanding and much more powerful, but it is a rare gift when someone can do it well.