You can't get a good smoke ring with an electric smoker. It's the nature of the beast. And I would check you temps on your MES with a digital thermometer. Mine varies widely from top rack to bottom rack. There is also been a lot of chatter that the temps are far off what it says on the top. Mine is within about 10 but with the ET-732 I can set it closer to the temp I want.
Will Smoke for food...