it is very effective, its one of the hardest bones in your body. spinning elbow strikes can be very good, but not very practical. ive never had to use them yet.
i will probably be starting TKD because ive heard good things and itsreally cheap (£2 for 2 hours!!) im goin to watch a lesson or two to see what its all about. question: do you think it will compliment my training already? and if so what does it help with?