The one thing not to do is to put weight on your front foot when you jab in an effort to get longer arms to have a harder jab whatever. Once there on that front foot you are a target and cannot throw a right without roking back on the rear foot then coming forward again. Remember quartey? If you came to him....but if you stayed away he had trouble moving lose behind that hard jab and you can count all the "1-2"'s he'd throw in a fight on one hand, odd for such a prolific jabber. Towards the end T Norris got the same habit of perching way up on the front foot when he jabbed...
Also, when hitting the bags etc...don't cheat your jab to favor your right.
Get it all the way out- turning your shoulders as
Scrap described or you'll forever be smothering your own punches
does this apply to shorter fighters who box taller fighters?