I have a queastion abaut the jab instruction video... When some one rotates his sholders this means that the weight is going on the foot in the direction of the rotation... OK when we are rotating to the right our weight goes backwards and we want to creat power going vorwards... This makes absolutely no sence for me! I think that the guy is making a very big mistake here... If someone is staying squer then he must trow the jab with rotation from the sholder because he can not step! But when a boxer is on the back foot and sideways,as the trainer demonstrates, he creates maximum momentum trough pushing with the bag foot... And when we want to be more precise the vektor of the power of the back foot must be colinear with the vektor of our hand... If not we are limited trough the maximum torque that we can create...