You... don't actually know what a wing chun dummy is for, do you? It's so you get the correct involuntary feedback from your strikes, to practice absorbing the third law's force. A Kata is to ingrain certain motions into muscle memory- also other things, like balance, meditation, centering yourself.
Sparring for training is very much unlike sparring in exhibition. In educational sparring, there is a student, and a teacher. Playing both student and teacher would require you to know what needs to be taught- meaning you wouldn't need to learn it.
Minus, if you want to make shit up, then go write your own story.
Moving on, you've all killed any desire I have to write for a good long while, so just let the topic die. Maybe at some point I'll work on my stories and ideas. Probably not here, though.