I see all these beautiful pictures of steaks that are seared with a nice brown caramelized crust. I have not been able to get that. My husband feels that the lowest grate isn't low enough. He gets the grill as high as possible, but the minute he opens it to use it, it loses heat. How are you all doing this? We cooked a 1" 3/4 steak porterhouse yesterday and got the sear marks, but not the brown caramelization. What's the secret? Thx