So after several days of heavy (for me) vaping on my new 510 thread cartos I thought I would post an update. I got 1 hard tip carto from Vincent as a freebie and I also got a 5 pack of the Boge ones from Jack. The first one I tried was the hardtop from vincent and I was blown away by the performance increase over the CE2s. Every drag I took had equal TH and taste whereas the CE2s had to be flipped upside down to get decent TH and even then it would only work for 2 drags. Then I got my Boge cartos in the mail, and once again I was impressed by the performance. The draw on the Boges is a little looser than the hardtop ones but to my surprise there was no decrease in vapor production due to this. I find it very easy to know when they need to be filled, I take one drag and realize something just isn't quite right, then I take a second and there is the hint of "change me" burnt taste. On that note however, the Boge cartos loose any remnance of the burnt taste within 2 draws of being filled whereas the one carto I got from Vincent after being filled twice wont give up the taste. I filled it up for the third time and took a big haul, GROSS, it burnt my throat and after 3 or for more draws it was still just terrible, that carto is in the "to boil" box for now... I'm not saying Vincent's cartos are no good, It's quite likely that since it was my first ever carto with filler I ran it a little too dry, hopefully it will be back up and running after a good boil. Anyway, those are my thoughts, now what to do with my new 5 pack of CE2s... Anyone want some syringe mods? lol