Well I use the 510 cartomizers and I've been taking the black wrapper off so the cone would fit better but that gets tiring so I asked my Husband if he could grind it down to make a smother draw on my cartomizer. My Husband ground it down real nicely with his grinder and then took a lil electric tool he had and smoothed out the inside and now I get the best draw from my 510 cartomizers. Life just got a lil sweeter in my neck of the woods
I just wanted to share...I've heard different people talk about doing it different ways, including grinding it down a lil and it works perfectly
I just wanted to share my experience with y'all. Keep on vapin 