Modified Kanger rba (holes opened-up to 3mm), 5 turns of 26 ga. 316L SS wire at 0.4 ohms, loose pancake cotton, Kanger Toptank mini in TC mode at 460F on KBOX 200, 35/65 PG/VG juice. Only leak I had is screwing top down on a full tank--hydraulic pressure forced juice into the base. Other than that, no leaking at all, no spitting whatsoever at that temperature, fairly reasonable draw and good cool vapor with amazing flavor. To confirm what has already been said, wicking is critical and it took me 3 attempts before I got this right. A point on the SS in TC, it takes a few ml of vaping to break this setup in and really saturating the wick when priming seems to be crucial. I start vaping at 360 and work up to my target in increments of 10 degrees. Works beautifully.