Generalized You vs. Opponent scenario, terrain is open and not an issue. What is your tactical preference between the two choices of: A) Closing the opponent off from you, meaning you are trying to get behind one of his arms so that you are directed "at" him/her, while he/she is pointed "away" from you; or B) Opening them up, i.e. getting in between their arms, in the interior position so that you may easily attack their front centerline? Which do you prefer and why? Oh, and by the way, how do you like to put that into play? Thanks. Minor research project.