I've smoked Butterballs for years. Love 'em. No need to soak them in all that nasty stuff. Just smoke'em and eat 'em.
Compared to the nasty stuff companies use? Wouldn't you rather know what it is soaked in? That being said, see my comment below.
Hint: ALWAYS turn the bird breast side DOWN. All the juices will run down and stay in the breast. Moistest meat ever. And don't cook the fool thing too long.
From AmazingRibs:
Breasts up!
Some people like to cook breast side down because they think fat and juices will percolate down and keep the breast moist. But juices simply can't travel much through muscle fibers which confine them. They are not straws and the breast is not a jug of juice that flows with gravity. When you sleep on your stomach, your chest doesn't swell does it? Especially since the fibers in the breasts run horizontally, not top to bottom. And if they could flow, pressure would push them up, away from the heat, like the liquid in a glass thermometer.
And where would these juices come from? Visualize an upside down turkey. The breast is maybe 3" thick at most. What is above it? The cavity. No juices there! Even if the cavity was filled with liquid, there are no pipelines for juices to travel through. In fact, the breasts sit on the rib cage and beneath that is the
pleura, a semi-permeable membrane that would hamper flow.
If you turn your bird upside down because you want fat to baste the breasts, alas, breasts have little fat. It's in the skin, which would be below the breasts if they were upside down, so melting fat would just drip out, not bathe the meat.
Finally, if you cook breast down, you smush the breasts and put marks on the skin, and if you put the bird in a roasting pan, the skin will probably not brown properly. Ugly.
I know Alton Brown says not to brine turkeys that already are fortified (butter ball honeysuckle) because they will be to salty. I would only brine a fresh turkey.
I love AB. But, I have a hard time finding a bird that is not enhanced. All seem to have an 6-8% solution. I still brine them. Scientifically, it is not like you will be doubling the salt by brining. The osmosis will balance out the salt so there is equal outside the bird as is inside the bird.
Brine it, inject it, dry it, rub it, cook it (to the correct temps), slice it (right), and eat it.