Why dont most boxers pivot the foot/leg all the way in?

[BCBUD]

Scrap Mike Tyson foot stance is the same as yours please still the video @0:25 and tell is that how to shovel hook correctly?https://m.youtube.com/watch?v=ahF8ySkacWA

Back knee should be bent more, when he boxed it was.

Can We transfer the weight from the back to the front without putting the chest over the front knee? Say 80% of weight transferred unto the front knee.If I'm correct his punching arm is bent at a 90% right angle. Really appreciate these gems of advice scrap. Probably most of us look at you as being the best trainer in the world for 3 reasons. 1. Posture 2.balance 3. Power. Thanx