I have an opportunity to attend a weapons camp during which you may focus on one of these weapons: Sai, Tonfa, Nunchaku, Gusan, or Kama. I am by training a KMA stylist, but I would really like to learn at least one of these weapons. So as someone who only has training in Korean Sword, what would be your recommendation for a good weapon to learn? Any comments or suggestsions are welcome. Thank you!