Im about to pay £10 per lesson which lasts 1 1/2 hours. There are no gradings and there are no insurance or membership payments. Should I join or is this too expensive? I am about to train under one of Dan Inosantos instructors Paul Finn and/or Ralph Jones. The classes are ideal for me as they teach wing chun, Jun fan gung fu, JKD, jun fan kickboxing and kali/escrima/arnis. Any thoughts?