boo-hiss . . . never put crap like that on a good steak. Never. A good steak needs little more than the steak itself. Needs to be at or near room temp. before grilling. Brush it with olive oil then throw some kosher salt on both sides. Grill it. brush a little more olive oil during the grill if it looks like it needs it. Sprinkle a bit more kosher salt too if needed. If you want to, some course ground black pepper while the oil is still wet but just a tad. a TAD. Never grill all the way to medium. Every person who has ever learned this simple (and for some reason secret) technique never goes back. Sorry for being Mr. know-it-all out of the blue, but it chars my strips when somebody screws up a decent steak.
Also, never grill fillets. T-bones are the best cut of meat and the fillet is the part in the middle of the t-bone anyway.
