I would use the same ratio that you use on your chicken but I would Soak for 12 to 24 hours depending on the size. I also air dry for atleast 6 hours in the frig. I then butter that baby up and hit it with Dirty Bird. I spin mine on the Weber Rotisserie so I also mix oinons,butter,rub and garlic and stuff inside that baby. Just me though. As far as the Chicken Soak Ratio some people mix it a little strong and some don't, I personally like it a little strong so Me and just Me I am going to mix it 2 Cups to a gallon of liquid. I am also going to add 2-3 bay leaves and some garlic cloves... You can make it how ever you like that is the beauty of the Soak.
This is how I like it....:becky: Good luck brother and let me know if I can help you in any way!