Tried out these grill mats for some steak and shrimp. You can see the nice even line on the filet. I mainly bought the mats for things like shrimp and asparagus. so they don't fall through the grates. They did really well on the steaks as well. I still got the charcoal char on the outside. The steak are with EVOO, Worchestshire & Montreal Seasoning. The shrimp were marinated in EVOO and chopped garlic. The grilled lemon really makes the shrimp amazing.