Tom,
I also recently did a Jenny-O breast and did not brine it. It was fantastic! My smoke was a bit unusual in that I was trying to prepare the turkey in a special way so that my wife could eat it. For health reasons, she is on a short term diet that does not allow any sugar or sweeteners, citrus, pepper or spices, or alcohol. She wanted some smoked turkey so I rinsed the Jenny-O off and patted it dry. I then rubbed it with EVOL, sprinkled with salt and parsley, thyme, marjoram, and basil herbs she can eat on this diet).
I used very little smoke wood (3 small chunks of hickory). The turkey turned out to be fantastic (IMHO it would have been better with some good spices, but that was not to be this time). The WSM made the turkey great even without all the good rubs we normally use. Just proves to me that the little sucker (WSM) is a versatile machine with a lot of “forgiving” if we don’t “follow the book”.
Ray