The Dipped Shoe Project

I am getting some stuff lined up to dip in rubber. I got my can of plastidip to make some soles for my felt boots. It dries out really quickly, so I need to have a plan before the can is opened. It is really difficult to choose a sketch to work from. I have plenty of ideas, but it is hard to know what the rubber will look like on the felt. I also only have one shot to make something nice and the pressure makes the final decision that much harder.