To increase the quality of your animation and the accuracy of the deformation effect, you can modify the regions of influence around the deformation chains. A region of influence is the zone around the deformer within which art will be influenced by the deformation. The deformer has the power to shape all art contained within the influence area on its own element or on its children elements.
Zones of influence are different depending on the deformer type and zone type you selected. Note that the Game Bone deformers do not support regions of influences. Game Bone deformers are set to Infinite and cannot be changed.
You can find the settings for the zones of influence in the Layer Properties of the Curve, Bone and Envelope nodes, as well as in the Rigging tool properties