For sparring (Olympic style), Coach Kim's are very good, especially for beginners (or if you have a point background and wish to do Olympic). For those with more experience, Dr. Jin Bang Yang's tapes are excellent. I also have Coach Han Lee's tapes and in my opinion, he breaks things down very well. I have not seen Herb Perez or Tim Connolly's tapes-if someone has them, what is your opinion?
Miles