Good balance is a function of precise movements.
Fair Maiden Threads Shuttles (FMTS) is a good movement to check how well you can keep your balance during turning and moving to a different direction. Its not difficult to keep your balance when you are doing it slowly. When you try moving quickly through the four directions a different story may emerge.
This is when you will find out if you have learned the principles of turning in FMTS correctly or you are doing it incorrectly. If you don’t do the turning properly you will find yourself wobbling when you turn quickly. You will also find that you cannot instantly issue power after turning and your turning will not be smooth.
To apply Taiji as a combat art we must be able to move at lighting speed and retain the ability to issue power suddenly. If you have learned the principles correctly during the slow moving learning phase it would be very easy to move through the four directions as if its one continuous flow of movement.
The above is in essence what I told my student when I found that he did not turn in the proper sequence of movements during FMTS. I also pointed out how incorrect and imprecise movements will lead to failure to deflect the opponent’s strength and cause the opponent to resist harder.