I've just recently started out on my own renting a room and bought at tropez tan and a hvlp machine off eBay. I just wondered how many mls of tan is recommended to use as I seem to have the gun turned right down yet still a lot of mist/tan in the air after I'm done?! But the guide colour doesn't seem very dark once finished? I'm worried I'm wasting too much tan if the machine isn't good enough?