Thanks to all of you that help us new folk figure out what we need before we buy. My authorized dealer was extremely helpful too. I calibrated the thermometer and fired it up with a Looft lighter. 5 minutes after that it was at 200 and I closed the bottom vent to about 1/8th inch and the same on the daisy wheel. Held the temperature at 225 for 30 minutes and have been playing with the upper and lower vents to hold it at 250, 300, 350, and 400 over the last few hours. I'm amazed at the ease of control. Tomorrow I will attempt my first cook!!! Thanks again for everyones' input.
Two XL BGEs - So Happy!!!!