I have the 18inch ism. This is the second turkey smoked on my WSM. Temp was 320 give or take. The bird was 14lb. I brined it for 24 hours then injected the bird and rubbed on oil and seasoning. I was thinking about 4.5 hours but it was done in 3 hours 20 minutes. The skin was black and split open over the breast. I know that sugar can cause some blackness on the skin. The brine had 1 cup of brown sugar, molasses, and honey. I probably should have covered the legs about 2hours into the cook, but what about the split skin? What would cause that? thanks!
20181214_141946 by mikesgm, on Flickr
20181214_141946 by mikesgm, on Flickr