Did a test today! Changed my wicks and filled my TGT and clone. Took my daughter to the orthodontist office for about half an hour. The clone started gurgling on the way home and leaking by the time I got in the house. The original was fine the whole time. Then took the original with me to the grocery store too. Still fine. So, since I re wicked and refilled them both the same, at the same time I'm guessing that Hciger uses lesser o-rings. I will know for sure when my o-ring kits get here from Germany. Maybe that's why the draw is looser????
By the way, the clone is vapping fine now that I'm home!
Domo Vapor has a nice o-ring kit also. Not cheap, but they are U.S.