0.1 mm doesn't make any difference? Theoretically I would say that's accurate. Scientifically I would also say that shouldn't be the case. Mathematically no way .1 makes a huge difference. But somehow a 20mm take one size and a 20.2mm takes another. OR I have tacky moisture build up.
When I went from a 16 to a true 17 from mc, I stopped the leak, but it still built up the juice moisture on the outside. So in my case that's exactly what what .1mm did. I don't know why. I have a couple other measurements I could take if I wanted to keep at the issue.
I've had many attys. ody, Penelope, iatty, and I've never had to change the seam oring. So to spend all this time on this is frustrating as all hell.
But I'm up to my eyeballs in orings. Hell all these orings that I purchased, I'm lucky to have orings for other mods and atties. I could cover a good portion of a room. Or even open my own oring distribution at bo-ringusa.com.
The JGG came with a couple sizes orings for adjustability sake. I believe the ithaka maybe should have come with a couple of sizes. Why? I KNOW I'm not the only one with this grief. I've been PMd. Any status? What were your findings? I have similar issue. But what happened? Some didn't want to "rock the boat". I've been vocal. And I know it's not all welcome vocalization. Because if I didn't vocalize, then others would accept random acts of leakage at face value. Here we share the good and the bad.
If I upset anyone I'm sorry. But I wouldn't change anything because if I help ONE person save aggravation for them, then I've done good. I'm sorry but it's true.
Does the ithaka vape great? YES. It does. Is it versatile and have options? YES. When we first got them they were fantastic. Then it quit. I wish I didn't have to go thorough all this to make it great again. Nobody should have to.
My humble and honest opinion.
And if anyone IS out there experiencing this, PM me. I'll get you some orings