You've probably noticed that when setting influences for a range of vertices the results are relative and not absolute. When specifying influences for a single vertex, the results are absolute. Unfortunately, the only way to be certain of any vertex's exact influences is to examine it individually. Although influences may appear to be removed for all vertices in a range specification... this is only apparent. I apologize if you have already considered this. I would like to know if the problem persists after exhaustive examination of individual vertex specs. Jeff Reid