Do you suppose there is such a thing as a natural ability? I admit that people can have an inclination toward certain subjects or areas of study and excel at them. But my guess is that even the “natural sales closer” may be missing or unaware of the deep knowledge in the fundamental principles.
It is hard to achieve consistency as a top-rate closer without a familiarity with and an understanding of the fundamentals of whatever activity one is striving for. Excellence is, as you likely already know, based on the mastery of fundamentals not the accumulation of techniques.
Daniel Jacobs, 2017