Well, what it comes down to is what you are looking for. If you already feel you have enough size and are looking more for definition and shape, you may be better off doing some exercises other than sqauts every week. If you are still striving for more size, squatting every week will probably get you there quicker. While many pro's no longer squat, let's not forget that they got all of their size through squatting heavy for many years, but now they really can't afford the injuries that can come with squatting, not to mention the heavy drug usage allows them to keep their tremendous size without having to squat every week. you already have some impressive size and stength, so it depends on the direction you want to head...