Share 'Airbrushing assitance?'

Greetings...   Can anyone post some suggestions or information on airbrushing with cocoa butter? I have a bunch of colors from Tomric. I have the badger 250, and the iwata all ready to go. We have used it a couple of times   Our 4 trays of orange and yellow for pumpkin came out fine. I had 4 trays of lips sprayed and only 1 tray came out all shiny and pretty, the other 3.... all bloomish and ugly…