For me, mainly, it is personal preference, taste, and flavor. If we're boxing, and you intend to throw three or four punches, I don't see the validity of you throwing the third and fourth, if between the second and third I hit you with a big right hand that, in the usual instance, stop you in your tracks. That will cut off his action, then and there, the only way he'd be able to continue would be by him having an insanely strong chin, or the other boxer stopping afterwards so the guy could gear up the third punch. Sure, there are other ways to handle it, I can slug it out with you, I can stand back and defend the punches, or I could try and cut you off.