Grills can't get hot enough. Not even the hybrid kalamazoo for 25k. For the best steaks a large, serious, wood-fired pizza oven it the way to go. Get it super hot and use either a cast iron or tuscan grill inside. We have a high end gas grill and it only gets so hot.
But if I were grilling on a grill, I'd load it up with a massive amount of super hot coal, room temp prime steaks and tons of seasoning.