naji...I don't take it personally at all...and I agree with what you're saying, in principal. However, for the player who isn't at that high performance level already, development of the conscious side of things is the critical prelude to gaining the knowledge and understanding of how to apply it...call it "cause and effect". My favorite saying is this: "Speed control is the ability to stroke with a desired speed at any given moment...on demand, under pressure, in ONE try!" To accomplish this you must develop an accurate and repeatable stroke. Very few players are able to do this on their own...at least not without years and years of practice and struggle (and even then many do not succeed like they want to). We help our students 'shortcut' that process. You can have all the knowledge in the world, but if you can't apply it, on demand, under pressure, in one try...then what good is it? You must do disciplined practice; know how to measure your results; and have a repeatable stroke first. That comes from conscious effort. Something must be ingrained consciously before it can become a habit (unconscious). This is largely what quality instruction is all about. 
Scott Lee
http://poolknowledge.com

Scott Lee
http://poolknowledge.com
Please do not take it personally, what i was trying to say, if a human cannot repeat a successful repeatable performance every time, then that person flat out got lucky, or all balls are in right places, easy run out, his opponent slips..etc . Simply put, that person does not have all the knowledge & experience to do it again. Look at SVB, or other pros, they are able to repeat success with minimal effect to "in the zone", "subconscious" because they reach mastery level, they know what they are doing, work extremely hard for it "all their life", their prediction of where CB is going is far better than any regular not top pro style, those pros reach a level where they know why they miss a shot (if they miss) with very high accuracy, their pattern play is second nature.
Again sorry.