this video will show my progess of combine the 3 sub tools to one using subtool master, and start making a new topo for the model. By giving it a new topo mesh , i can cut down tons of polygons and texture size. the subdiv level 1 polygon count was 10k, after retopo it cut down to 2500 tri facaes, yet all the detail remains the same. a very important and usefull tools in Z brush 3.1.