So ive had this in my tool box and finally decided to get on it. First, i didnt need five mls so i cut it at the base. Bored the base to press the parts back together. Polished it of course, two neg posts, center positive post, ss 510 connector no glue just presses delrin for insulation and ss for posts. I still need to open up the air holes not enough air gives hellish throat hit and no vapor.