Amazing experience training with Sam and the family at DOS. Sam has been an extraordinary coach for me, changing my life for the best, giving me the privileged opportunity to be a part of a national team for Australia in a Korean tournament, as well participating in State and National tournaments. Not only have I learnt respect being Sam’s student, Ive learnt what hard work and determination can achieve. Ive been training with Sam from the young age of 11 and i have never not felt part of a family. Best experience to date.