This is gotta be my favorite food. It's all mine, as far as I know. My mom gave me the idea though. She told me she liked to add soy sauce to ground-beef, to give it flavor. Also to make it not stink up the kitchen while it was cooking. So one day I decided to try soy sauce with tri-tip, only in a marinade instead of cooking with it. The weight of the meat doesn't make a difference, it's all in the time you marinate and the smoking itself.