A few things to remember about spray cans and misting and spattering paints, new cans will give you the fine mist pattern because the pressure is the greatest in the can, a can that is almost empty will give you the bigger splatter effects like in Bobas armor because the pressure is just there to make a fine mist. Also do it in short bursts of any where from 8"-24" away from object to get your desired effects.
HTH,
Lynn