Craig,
How are you doing? I have not seen this spear form in CCK Tai Chi Mantis. I practice Say Moon Chiang.
The performance is good, you have good speed, power, good one leg stances, good control of the spear, and nice tornado kicks.
The things I saw that may need improvement. Take into account I do not know this set.
I do not see the block back in a crouch stance, then forward poke into a quick ride stance and then into a full bow stance.
I was taught that a kneeling stance, the knee should should be very close to other ankle and about a foot width of distance away. Your kneeling stance is wider, it looks very much like the kneeling stance of Choy li fut.
I think that you stances could be more defined. I know I have to force myself to do this and I think it is something that is more common to Northern Chinese martial artists. We move with a lot speed and make fast transitions.
We have to remember to make bow stance with the rear leg straight and the foward knee bent over the toes and make a ride stance that is deep enough to look defined.
I think you are doing well.
E-mail me back and tell me about the set.
Regards,
Steve