Greetings..
"Internal Power"... how is it expressed? Externally!
There is a balance, as in all things.. great internal potential fails without the external balance needed to express it. The most refined fuel does little when used in a crappy engine.. We tend to focus on extremes, when balance is more appropriate..
A Taiji trained fighter should be identifiable as a Taiji fighter, not too different from an Aikido player.. similar philosophies..
Be well...
TaiChiBob.. "the teacher that is not also a student is neither"