painting weights problems

Painting weights on the demo character was fairly painless however I ran into some issues during this process on my worm. This was down to not fully understanding what the process does. When painting my weights I found that new influences kept cropping up automatically from unwanted joints. I did not realise that an influence of one meant that part was 100% influenced by that joint. This means if a section is 100% influenced it can not be influenced by another joint. With this knowledge I could fix my influence weights by making sure each segment had 100% painted for there respective joints to stop unwanted influences, this completely fixed the problem.