FiveFrameSwing
Banned
Hard to 'maintain' much on a swing with a ball that is up, down, in , out, fast & slow. Box no, possibly or close to a triangle if I had to pick a shape.
There is no need to "build a box" prior to swing initiation, or to attempt to "maintain a box".
Building a box prior to swing initiation creates excessive tension, which is exactly what you don't want.
At swing initiation, the goal given to the hands serves the purpose of building structure in the forearms. This structure will remain intact for the first few frames ... i.e., during the 'Around'. You shouldn't be trying to purposefully force and maintain a box shape.