RC Groups post: "i am going to be using cncguns power distribution board since we are both using the same frame/quad setup/design. some people stated that the pcb traces needed to be built up w/ solder for the A needed for the quad. i did a solder paste/flow and wanted to get your opinions if i built up the traces enough - i added ~.025' of thickness to the traces. the more i use solder paste the more i can't believe i waited so long to use it"
Read the whole thing, it's got several pictures of how to do this.