I agree with alot of the things said in this thread. My advice is target places where mucle doesn't grow. For example: my favorite place is the face no matter how buff and big a guy gets he (or she) cannot train their face. Also target the back of the knee. If you get one good low roundhouse in that place, it basically destroys his moblity, but some people can take it so be careful. What I find that you guys forget to metion is the type of fighter you are. If you are the type which I like to call expensive fighting where you take hits and then hit back, you are going to be in trouble. But if you are good at deflecting energy or evading, then you are in good shape. The most important thing again is courage. Without it you might as well just take hits.