What is the cost of resurface+lighten compare to buying a new one? If it is not too much of a difference, I would get a new one to save the headache. Fidanza is good, and not that much. I have used them before, and no problem. But if you can spare more money, then it is better to get a 1 piece design flywheel like ACT Pro Lite or Street Lite. BTW, you won't feel any difference if you run ITR flywheel. It is not worth the money and time. I'm speaking from experience.