Is it a requirement to use this with the Joye 510? Or can you just use the eliquid? I have been reading posts on this and it seems this is used just to produce more vapor? Or is there another reason? I was thinking it would be a good way to reduce the level of nicotine. Like if I were to use a 24mg eliquid then diulte it with the VG...or am I not understanding properly? 