I have a slightly modded masterbuilt Brinkmann clone smoker, but I have a lot of trouble maintaining stable temps. I just got a weber kettle, so I was thinking of smoking on that. I've done a few smaller smokes on my old smokey joe silver, so I'm familiar with the compromises of smoking on a grill. What do the experts say - kettle or masterbuilt? I'm smoking two small-ish butts for the Fourth.