I'm with Paul. Why use it to set up anything. Not used as a range finder, a stinger but a good hard strong jab w/bad intent used w/a quick step for extra power can be a fight ender, or break that nose, Throw a jab, Then throw another jab. If you want to know about the jab, just tune into friday night fights on ESPN or whatever. The guys who use it to find range or get lazy w/it can get into trouble real quick when they leave it out there and BAM the overhand right comes over it. The flickers are simply scoring points and you can see the moment that their opponents realize that they aren't going to hurt by the jab and they can just wade in dropping bombs at will. That's pretty ugly too. But a fighter who has truly mastered the fighting hard jab, like a hard insistent drumbeat, that controls range, causes confusion and pain will just flat break his opponent, break his will, break his spirit, and break his face. The jab is a foundational punch. I saw a fight a long time ago, maybe Roger Mayweather, he broke his right hand in the first round, fought an eight round fight against a tough younger opponent using only his jab, by the end of the fight the kids face looked like a squished tomato. I believe in the jab.