You sir are a gent and a genius. Success (so far). I stripped it down and replaced the o rings with the spares and wicked as per your picture and its working grand, no leaks at all.
I'd like to say it was the o rings and not my build haha! but whatever it was im just happy now.
No probs glad you've got it sorted and you can enjoy vaping it now. Fingers crossed it stays that way. I would have thought it would be the o-rings just from where it was leaking and if a wicking problem I would have thought it would come out the air hole or bottom somewhere.
I know exactly how you feel though, my Lemo 2 was dribbling juice out the airflow hole, it was fine for the first tank full, then leaked after, and I hated it for it. I ended up cancelling a 2nd pre order for one because of it. Finally worked out it was not enough wick on Monday because I cut my wick to short and it pissed out.
What you think of it now it's working as intended?