i all ready had my black belt in karate some when i cross over to taekwondo it olny took me about a year but that with lots of work, learning all the form and basics of the school but none the less i kick butt because i did'nt let any of the other stundent know i all ready was a black belt (3rd dregee) in karate so when it came to sparring i had some fun with them. but with in time the instructor found out and had me take priv. lession and pump up my trianing big time.