Squirrel- Try blocking a few of the holes at the base of the battery. They do tend to be airy but once you get used to it, it's great. If you're used to poly filled cartos, they are different. I take slow long drags and it's better. Took me awhile to realize they aren't cigarettes a the drag is different. LOL
Are you using a drip tip? Make sure it seals good around the tube. Try it with the white mouth piece and see if there's a difference. If it's not sealing with the white mouth piece, turn it upside down and push it in, the lip on it will seal closer to the cup. let me know if this works.