Have to disagree, when I started to learn to play pool I started using English almost all the time, after taking my first lesson with a certified PBIA billiards instructor I learned not only did I use English all the time intentionally but unintentionally as well, I couldn't perform a stop shot or draw the ball straight back, upon learning my vision center and learning to shoot straight I spent a month of self imposed no English, follow and draw were OK but no sidespin, I was shocked to learn how much you could move the cue ball using center ball, it helped me learn what the natural angles were so I knew when to add sidespin or not, I find myself using far less English and far less extreme English.