No, I haven't checked it loaded, but yes, it hits harder without the DCA. I attribute the coolness to the length and design of the unit.Have you tried performing a loaded voltage test? Can you tell if it hits harder with the atomizer just screwed into the unit vs screwed into the DCA? I think you mentioned you felt a little cooler vaper with the DCA on? Also, does the interior (306 to dca connection) perhaps get any juice residue on it?
And yes, the interior and threads of the 306 get juicy.
My apologies for turning this thread into a DCA/aluminum discussion. Doesn't belong here, this should be a celebration of the Precise. I'll start a separate thread if anything more comes to mind, or maybe you could.