To be honest I have never been big into Muay Thai or Tae Kwon Do but I just came across a highlight video of Cyrus Washington and he looks like a bad ass. There are many impressive knockouts by him. Is he really good? or is it just a good highlight video? Cyrus Washington Video
Definitely looks pretty good to me. He has a very unorthodox and explosive style with a large arsenal of techniques. The more you vary your techniques, the more you keep your opponent on his heels. He would be a very difficult opponent to "feel out" because he seems to not have any patterns or repetitiveness. You never know what he is going to throw or how he might react to his opponents attack which would definitely cause someone to hesitate to attack him. Definitely looks like a strong and effective blend of Taekwondo and Muay Thai to me.