Where exactly do you place your arms in space when you execute a technique?

In Wing Chun we keep the elbows closer to the body since its a close quarters combat system. However, in Pok Khek Kuen we keep our elbows away from the body since we abide by the principle of an inch longer gives us greater power.

In Yang-22 we use the Shoulder Chi Ring to inform us where to pose our arms for the technique. The Waist Chi Ring is used to anchor and connect the elbows to our waist while the Kua Chi Ring helps us to keep the lower body in coordination with the upper body.

When we move the arms inwards and then outwards we use the Shoulder Chi Ring together with the Open-Close track defined by the Mountain Character to guide the movement of the arms.

The training for the Open-Close track in tandem with the use of the Mountain Character is covered in Part 3 of the Neigong training set. If you are into fajing pay attention to this training because it is integral to the force generation process.