Salux, thanks for another aiming system. I think most folks understand you're not using the pocket during the aiming process except as a way to establish the 'class' of shot to select. Some people don't though, obviously. I've tried your system and it worked for me. I use a similar method when the balls are within a diamond and aiming systems start to break down. I prefer using another pivoting technique but yours is fun to play with.
For pj and bc, here's how to pivot: (use a 10* cut, baby steps first)
When the stick is on the line BD, align your body with the stick, your left hand making a bridge. Imagine you're going to shoot down line BD. Using point B as a pivot point rotate your body at the hips or waist or both until you're aligned straight through CCB. Don't change your hand to body position, keep in 'shooting' position. You'll need to move your feet slightly as the stick swings toward or away from your body to maintain your stance and balance. Surprise! You get a cut angle. Inconceivable, but it's how pivoting actually works. Put your pencils down and go to the table please, you may learn something new.
For pj and bc, here's how to pivot: (use a 10* cut, baby steps first)
When the stick is on the line BD, align your body with the stick, your left hand making a bridge. Imagine you're going to shoot down line BD. Using point B as a pivot point rotate your body at the hips or waist or both until you're aligned straight through CCB. Don't change your hand to body position, keep in 'shooting' position. You'll need to move your feet slightly as the stick swings toward or away from your body to maintain your stance and balance. Surprise! You get a cut angle. Inconceivable, but it's how pivoting actually works. Put your pencils down and go to the table please, you may learn something new.