Bad arm bar is from losing the hips early. Good arm bar is from adjusting to a pitch further away from the perceived arc in space and or time. Can be approach related as well. You can bring the arm back into flexion as well.
When you bar the front arm it creates more tension in the wrist. Imo it’s related to an out to in approach.
When you bar the front arm it creates more tension in the wrist. Imo it’s related to an out to in approach.