I have one of the original collaborations with ijoy. It was the one right before the +. I have both but I prefer my original. I have a half moon mods tip on it and the air flow is much better. I do not really like the tip on the + and my half moon mods fits in it but it comes out with my lips when I let off so the tolerance isn't quite there for it. I do not tip it upside down to saturate though, I use an ID of 3mm when building coils and the wicks fit perfectly with no dry hits and I can chain vape it with 85% VG.