it's normal to have more pop on your jab when you let your hand hang low. and it looks great. but until you're RJJ or Ali you're asking for trouble.

the jab is a set-up punch, but most guys feel they can't break glass with it so they look to increase it's power by, of all things, letting the hand down to increase your leverage. But they also fail to throw multiple jabs. They look for the 1-2. No...... go, 1,1,1,1 2!!!

Jab often. Keep it ins his face. You'll land way more right hands by keeping him off his game by throwing your jab in bunches and often.