What should you be really doing when slipping the jab and your opponent is following up with a right hand? should you be slipping to the outside to try and avoid the right, or trying to get your own punch in?
When you've slipped and made him miss you should be in a position to counter. He will also be aiming the right hand where your head was rather than where you've moved it to so when he throws it you won't be there. When I slip to the left I use the left hook (i know some people that use uppercuts but this feels awkward to me) but if I've slipped to the right I use a right hand.
easiest thing to do is to step back, step back in and counter. Also its easy to slip the jab by moving to your right on the outside and just block the right cross with your shoulder
if you mean step straight back then i have to disagree completely. linear movement is risky business.
Usally when I slip the jab I roll under the right hand even if its not thrown, and when I come out of it I bring my left hook with me, followed by a right hand. you can also slip side to side instead of rolling under but I love to roll cus I get leverage on my left hook and it does damage