World Machine UDK Weight Maps help

Chicken Dip

Hi guys, i am having a small problem with World Machine, i am trying to make a small snowy mountain in UDK but i cant seem to get the weight maps right from World Machine, i manage to get the Snow Mask just fine but the rest i cant seem to get a good mask. here is my layout:
http://imgur.com/b7w0anr

Any help is greatly appreciated.