I just drilled the whole restricter plate off, works way better than before. This is my first vape so at first I wasn't drawing correctly , I found that the sipping technique works better than drawing with a complete seal with your lips on the mouth piece , I just sip it straight to the lung like a joint . At first I thought I wasn't getting any vapor , but after some practice in front of a mirror I got the technique down, I found the vapor travels very fast with the sipping technique, and the puck doesn't get sucked up as often . And I'm amazed at how little smell vaping gives off , I used to smoke outside when I combust , now I just vape in my room and nobody at my house notices any thing lol I'm loving vaping now