The yolk will be about 1 1/2 tbsp and the whites will be about 2 tbsp. An extra large egg will have about 4 tbsp of liquid inside, while a medium egg will have only 3 tbsp.
Test the meat after 30 minutes with a meat thermometer. Remove it from the grill when it is 135 degrees (medium rare) or 150 degrees Fahrenheit (medium). The tri-tip cut will start to get tough if you cook to a higher temperature than this.
It's our favorite marinade for tri-tip. The original recipe is from the Food Network site, but I've changed it so much that I claim it as my own :) It's SO tender and flavorful!! Marinate for at least 6 hours or over night. This is enough marinade for a 2-3 lb. tri-tip.