You can mirror deformer weights, either from one surface to another, or within the same surface. You can also mirror deformer weights on selected components of the surface.
Similar to mirroring skin weights, note the following for best results when mirroring deformer weights:
 -click and select Control Vertex or Vertex. Select the components on the side from which you want to mirror and the components on the side to be mirrored to.
-click and select Control Vertex or Vertex. Select the components on the side from which you want to mirror and the components on the side to be mirrored to. 
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             Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
 Except where otherwise noted, this work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License