New script
Here is another one i just wrote:
Copy/Paste vertex weight
Menu: Script Window -> Copy/Paste vertex weight
With this script you can pick a vertex to copy it’s weight and paste it to multiple other vertices. If you selected more than one vert in the first step and click on paste, the applied weights will be averaged. This is useful to match or repair weights between different mesh parts. In my example i am attaching a belt buckle to the belly of my character.
There is another Button called ‘Average Vertex Weights’. It will smooth the selected vertex weights with a fallof within the selection.