i grilled a 1.5 lb piece of filet mignon last night and time wise and everything it was fine (though in the future i'll probably stop it at 125F rather than 130). BUT i thought that i would throw some mesquite chips on the charcoal to impart a "little bit" of flavor. i generally weigh the amount of wood that i use and in the past i've used 3oz of mesquite with burgers or rib eye. but this filet just sucked that smoke up more than i've ever seen. i mean the smoke ring on this thing would have been impressive IF i had wanted it. but i didn't and it was too overpowering. it was still edible but i'd much rather eat a filet with nothing more than salt and pepper and the slightest hint of smoke (maybe). Needless to say, in the future, i won't be doing this again. But my question is does a leaner meat absorb smoke flavor more efficiently than fattier meat and if so why?