Never said it was necessarily right or wrong, Im just playing devils advocate. Each way has advantages and disadvantages. Throwing out a backfist with the side kick actually helps generate a little bit more power.
I prefer to keep my hands up however, in a real fight, somebodies home boy may stick you in the mouth while you are kicking his friend. Chin down hands up.
And enough with this "real kung fu guys" cr@p. San Shou is "real kung fu" is it? You are teaching Lama Pai more or less, otherwise you wouldnt have anything to teach. Lama Pai is kung fu. Great that you go full contact. So do I. We wear UFC gloves on our hands, and wrestling shoes on our feet. Real enough? We dont wear chest protectors either.
Fact is, you are teaching kung fu and promoting kick boxing style events. How about showing a little respect to YOUR OWN STYLE.
I do however, appreciate use of "kung fu guys", as a very mild attempt at making that not a blanket statement... which it was.
"In choosing your dwelling, know how to keep to the ground.
In cultivating your mind, know how to dive in the hidden depths.
In dealing with others, know how to be gentle and kind.
In speaking, know how to keep your words.
In governing, know how to maintain order.
In transacting business, know how to be efficient.
In making a move, know how to choose the right moment.
If you do not strive with others, you will be free from blame."
-Lao Tzu, Tao Teh Ching
An eye for an eye leaves the world blind.