I'd like to see someone not as lazy as me come up with a formula based on this that also takes into consideration 'secondary gear drops' - that is those nodes that contain drops for two or more gear pieces that are needed (such as 9b DS). If i'm gertting .36 on the callers and .2 on the electrobinoculars components, I'd assume that as long as i need the electrobinoculars I may as well farm that node for callers despite costing almost twice the energy for them, but as I said I'm too lazy to run the actual numbers