We all know the basic WCK punch, the jik chung choi, right? We do it in the beginning of every empty hand set, we do it in our drills/exercises.

So, why do we learn and practice doing the jik chung choi on the centerline (and from our center line)? Why is this the most basic punch, some might say the foundation, of WCK?

(And I won't pull a Henrik, I will give my answer).