I have been vaping for about a month now. I started with a nautilus mini on a spinner battery. After one week of that I was already set to make the jump to sub ohm vaping. After doing a bit of research ( obviously not enough). I went to my local shop and bought the white subox kit. I wanted something with RBA capabilities but could use factory coils too to start with. I can't sing enough praises for that tank. The OCC coils should be pitched because the RBA is where the flavor is at. The deck is easy to build on and I love the flavor and clouds I get from my .3-.4 ohm 24 ga kanthal coils I have been building. The mod is another story. It broke 3 weeks to the day I got it. I started out yesterday sub ohming half a tank with no problems. Then I went hiking and decided to switch to the nautilus tank. I got through half a tank and then it stopped working. I figured I got a bad coil since I had just replaced it. The box was reading 9.9 ohms. Still thinking it was a bad coil I switched back to the subtank when I got home. Same thing. 9.9 ohms. First thing I did was clean all contacts with iso. There was a lot of dirt, but when I tried to fire it up, still 9.9. I even checked to make sure I didn't get sold a clone. I powered it off and took out the battery in hopes that it would reset. No luck. So I took to the internet (that's how I found this forum) and apparently this is not uncommon. The 510 pin on the mod is fixed and there is a risk that it can get pushed down causing the error. I even read where someone got the 9.9 error out of the box but tried a subtank from a different kit and it worked. I tried 4 tanks on it and 9.9 with all. All builds were good since the tanks all fired on other batteries. I took it back to the shop today and they would not exchange it because it was used. They instead offered me a discount on a replacement. I settled on an iStick 100w. They wanted $60 for it and I talked them down to $45, so I'm pretty happy with that since that isn't too far off from online prices. I normally vape between 25 and 30 watts on the subox so I fired up the I Stick at 29 and it delivers, in my mind, much better than the kbox. Hope I have better luck with this mod. I still love the tank and plan to buy a spare, but the mod that came with the kit was a let down. Too bad, because up until yesterday I absolutely loved everything about it. Funny thing was that I specifically asked the guy at the shop if I could use my nautilus mini on it and he said I could use anything with a 510 thread. So if you have the kit or are still considering buying it, don't use anything but the subtank mini on it or you could ruin it. So my advice to any newbie getting into subohming; get the subtank mini, but DON'T get the kit. Do yourself a favor and get a mod with a spring loaded 510 pin.