Update: I think the 2 slots compared to the one is a better route. The reason lies in the fact that the filler gets liquid flow from both sides thus suppling the majority of the bottom filler faster... I have only used the one slot cartos until now and as we know they work. Not to mention the filler absorbs the liquid reguardless... My conclusion is a faster more even wicking with two slits... Just my theory and experience between the 2.
I agree .. at first I was only doing one slot however I chain vape and the one slot just seemed to not wick as fast as I wanted it to. So I started cutting two slots and it just seems to wick better and faster for me. I use a very thick caramel based 50% VG
juice, if I was using a lighter
juice then the one slot would probably work fine.
Sure wish I could get a carto to last more than 2 days though, I think it must be because my
juice is so dark and thick. The carto doesnt stop working, just eventually gets harder to draw on, so then I toss it and use a new one
Some of you are getting many many days on one carto .. would love to know why I dont .. probably cuz of my juice?