In this case sticking an oring over the center air shaft right where the coil head meets it fixed the leak 100%. I do get some condensation out the air intake at the bottom on occasion but I REALLY have to be chaining it for that to happen.The only failed vape item I've bought was an egrip. The reason was leaking. I have a theory that any atomizer system where the air supply is a straight shot to the bottom is going to be prone to leaking because of the capillary effect of that stright path downwards.