My Brinkmann electric smoker (the orange bullet) died (yea) and my wife has said she'd get me a better one for my birthday (lucky me!) I have been looking at a Masterbuilt Electric smoker 20070213 or 20070215, and would like to hear some opinions about these two smokers I know the 15 is replacing the 13. For a more even heat distribution, would it help to put lava rocks or ceramic briquettes on the bottom of the smoker? The Brinkmann had lava rocks. What other things would help me with the new smoker? Thanks.