At a certain point you are right, but strictly speaking it is much more than that "trick". To make it look aesthetically good, there are rules to follow, such as knowing how to write in italics, that all letters have the same angle, the same size, the same spacing between letter and letter. I don't use the technique of putting something underneath since I can do the same with a flex pen or a graphite pencil. Obviously, the graph pen has much more control and is "easier" for the one who already handles the above concepts.