So it´s even a turned shoulder plane when using rotated shoulder turn as long as the hands, right shoulder and the balll lie in the same plane. Or am I completely on the wrong track here.
The Rotated Shoulder Turn (10-13-C) can locate a Turned Shoulder Plane, but only if the Waist Bend is exactly right. I wrote a post a couple of years ago describing one way to determine the necessary amount of bend (and it's a lot). [Search my posts in the Archives for Rotated Shoulder Turn; I think I called it Shoot the Plane Line.]
Remember though, the true Rotated Shoulder Turn (in both directions) is effected by a Shiftless Hip Turn (10-14-C). This produces a Low Power Stroke that limits its usefulness to Short Shots.