Yes Imeo, I've seen your non-leaking big mode before.

This time around though, you're using the V2 - that's cheating!
When you say to use 3.5mm wick, is that what I got? I got all my wick from Bruce shortly after the V1 Ody came out, and I now see he has 3.5 and 3.0 but I don't remember what size I got - I am sure he only had one size at the time though.
Regardless, I just can't get mine to not leak...I'm sure it's user error, no fault of your wonderful design. I even get gurgling and some small leakage in short mode from time to time.
I haven't messed with it since posting last, but I think I'm gonna try my hand at a dual coil tonight...in BIG mode. I'll report back!