After a few successful months with the Herakles Plus, I decided to give the Pro a try. Mainly because I hated the top air flow on the Plus. Anyway, got the Pro primed and ready today with the 1.8 coil it came with. The issue is it doesn't seem to wick properly. I'm not getting dry hits but the flavor doesn't seem to get through. A quick solution I found is to loosen the top cap enough to break the seal, then I see the bubbles rise out. After that the flavor is good for a few hits...anyone else have this problem?