Some wing chun practitioners use the triangle post dummy to improve the timing, accuracy, and power of their kicks, as well as to improve their footwork. The triangle post dummy consists of one full size tree and two sawed off tree trunks, all three wrapped in padding. I know that you are supposed to apply dit da jow before doing tree training, and some people claim that you should use the jow during the training, also. However, I was also told that sunlight, air, wind, water, and extreme hot and cold temperatures can destroy the jow's healing properties, all of which you can be exposed to when being outside. So is this kind of training really worth doing? What kind of benefits can it give you that the wooden dummy cannot? Thank you for any insight that you can give me on this topic.