All bodybuilders have their favorite exercises.
Maybe you HAD learned the exercise in this mag, maybe from the big guy in the gym. As to the notion that your favorites are better than others, well, maybe and maybe not. So, rather than forcing you to give up your teddy bear, let me offer some advice that you may find very useful. The practice of twisting and turning which way and that while doing an exercise is generally not effective in affecting the shape a muscle will eventually assume. Your genetic predisposition will determine each muscle's shape.