Mirror Skin Weights Issues

i am having a lot of problems when mirroring skin weights from one side of the character to the other side. like unwanted deformations etc.. what can be done to solve this problem and what are the basic guideline to keep in mind while morroring skin weights...

pls help

Hi,
Have you tried using Asi Sudai's Skinny Mel Script? It's really great, give it a try for mirroing skin weights, it works quite well.
Best,
Jacques

LINK:
Asi Sudai's Skinny Mel Script