Its totally down to the reactions of your opponent, you can let somebody poke you out of it, and make a memory of roughly how long they take to react & poke, then you can cancel out of the B2 just before they would poke and go into F3 or B3
its a descent mix up if you read, react and get in your opponents head. the thing about Cages charge is that (correct me if im wrong) like 18 frames longer than the others
Its totally down to the reactions of your opponent, you can let somebody poke you out of it, and make a memory of roughly how long they take to react & poke, then you can cancel out of the B2 just before they would poke and go into F3 or B3
You can also b2 into simple moves like b3 or ex nut punch...not quite as effective as an xray setup but again like Foxy said, it all depends on how your opponent reacts to it...