TheRobbo, you're saying that loose screws causing increased airflow through the ll cart drops the temperature relative to using the same rate of inhalation with tightened screws, which results in better vaporization? gonna have to try that Tim mentioned removing a screw in the eo core, for better airflow. What is the official size of those screws, I believe OF said 0.035mm ? If the tightening/loosening of the screws is an essential part of the functioning of the unit it seems like a nice gesture to include it in the package. Either way I love the cera, for it's ability to deliver dense flavorful vapor at a moments notice, for repeated sessions, without needing to reload or recharge. Something I have always wanted to do, but until now have not been able to. It was worth it for me, definitely.