The only tank I own just for OCC is UWELL CROWN (I did not buy its RBA), yes it is a good flavor producer. The problem I face:
1. The tank is top-fill capable and I think its made quality is also good, but the quality of OCC I bought is beyond my control. (I have purchased few boxes from China). Sometimes top-fill cause leaking and sometimes it did not. My experience tells leaking is mostly cause by quality of the OCC particularly its O-Ring. I really can't tolerate leaking with OCC, so nowadays, I am tire of trying and only use bottom fill instead of top-fill.
2. Power beyond 40 watts say about 60 watts or more is mandatory. I own a SMOK TFV4 mini tank, it comes with 2 OCC in the box (besides its RBA). I still remember that one incident which cause me to rush 45km back to a vape shop just to ask why a creamy juice I bought from them doesn't taste right with my SMOK tank. I have tried that juice in the vape shop before I bought one (they let my tried on a RDA tank) so I can felt the difference. Guess what? It was because I use too low wattage, about 30watts and the liquid taste totally different (not so nice in my case). After some test, the vape expert from the vape shop finally found out the trick, I need to heat that juice atleast at 60 watts (with the SMOK OCC) in order to get the same taste quality as produced by the RDA.
3. My daily juice is Creamy Suckerz VerryBerry Flan, a gunk prone e-juice, no matter what coil and wick matterial I use, the gunk built up force me to rewick pretty frequent (uless I can tolerate the degrade of taste quality). So, I don't think I can afford heating this juice with OCC. But I just can't let go this juice... so I had to let go OCC.
1. The tank is top-fill capable and I think its made quality is also good, but the quality of OCC I bought is beyond my control. (I have purchased few boxes from China). Sometimes top-fill cause leaking and sometimes it did not. My experience tells leaking is mostly cause by quality of the OCC particularly its O-Ring. I really can't tolerate leaking with OCC, so nowadays, I am tire of trying and only use bottom fill instead of top-fill.
2. Power beyond 40 watts say about 60 watts or more is mandatory. I own a SMOK TFV4 mini tank, it comes with 2 OCC in the box (besides its RBA). I still remember that one incident which cause me to rush 45km back to a vape shop just to ask why a creamy juice I bought from them doesn't taste right with my SMOK tank. I have tried that juice in the vape shop before I bought one (they let my tried on a RDA tank) so I can felt the difference. Guess what? It was because I use too low wattage, about 30watts and the liquid taste totally different (not so nice in my case). After some test, the vape expert from the vape shop finally found out the trick, I need to heat that juice atleast at 60 watts (with the SMOK OCC) in order to get the same taste quality as produced by the RDA.
3. My daily juice is Creamy Suckerz VerryBerry Flan, a gunk prone e-juice, no matter what coil and wick matterial I use, the gunk built up force me to rewick pretty frequent (uless I can tolerate the degrade of taste quality). So, I don't think I can afford heating this juice with OCC. But I just can't let go this juice... so I had to let go OCC.