I'm wanting to step my bowmaking up a notch. I'd like to try a bamboo back / osage core, bamboo belly. Might even throw in a blood wood thin accent. Does anyone have a good starting point of thicknesses and width for the belly, back, and core ? I'm guessing you start out a bit wide and control weight by side wood removal ? Any help. Looking for 50# The type of bow JD and some others are making.