Thanks for the tips on the tuna Lurker and Marathon Man. As this is a celebratory dinner for my brother and his new fiancee (its her favorite meal), I think I will do some practice runs before they get here. There is a restaurant in the Intercontinental across the street from my office. They make a tuna burger that is cooked just right. Good to know it is only a few minutes each side as I tend to overcook new things on the grill.