I took delivery of the 700 and 340 a few weeks ago - finally was able to get around to assembling and initial start up / cook. So far extremely impressed with how they hold an accurate temp compared to my other smokers. The 700 came with the cast iron heat deflector - does that mean it has the upgraded controller and 3rpm motor? I did notice that the 700 controller is dual band, whereas the 340 is single band (2.4) only. Is this the main difference? Thanks