Good video. Nicely framed this time, beautiful scenery, you've got the cool shades on, and the black vest with the collar up looks good. And black is
slimming!
---says the guy that just split another pair of pants yesterday

. Oh well, at our age we deserve to show a bit of our ...er ..."prosperity"
Anyway, I also like uprooting and disrupting our
opponent's center of gravity. I just would like to emphasize the importance of doing this while exerting forward pressure directed along centerline. Pushing wide of center or laterally can leave you open to a nasty counter by people with good root, pivot and steps. Also pressing down forcefully on someone's arm
can create a pulling-in effect that may leave you vulnerable. For example at 0:45, your student could maintain his structure by letting his left arm bend, absorbing the pressure and redirecting your force. Should he fail at this, he has another option seen at 0:48 (and similarly at at 1:55) where it looks like your downward/across pul on his arm is leaving you vulnerable to a nasty
downward shoulder punch to the solar plexus.
A lot of people execute the shoulder punch dipping and rising, but the quicker, harder downward version can put a guy through the wall. I actually witnessed my old sifu knock my si-dei Robert through a hotel room wall with this technique. We were all very amused, but hotel management was
not. 
Shoulder punch 8:45-8:55
BTW here's my previously mentioned si-dei on another day taking abuse from my old sifu. For what it's worth, he said it got even worse when he travelled and did demos with Emin!!! ...and I know he loved every minute of it.
http://thumbs2.ebaystatic.com/d/l225/m/mjrCTbt416yjlvNPWXbYOQw.jpg
Now back to the topic. If, on the other hand if you pull the arm
laterally too strongly "toward his pocket", a skilled opponent may borrow that force and use a lateral "falling leaf step" and pivot to let an unwary or overcommitted attacker fall onto his punch. Some WT practitioners, especially those familiar with EWTO curriculum may recognize this from their Lat Sau drills (Lat Sau 3 in our curriculum).
Mind you, this is
not a dismissal of your main point. Just a note that every attack, especially if done with excess, may leave you open to a counter. Except, of course, when you are
better than the other guy. Then you can mess around with impunity. ....God I hate it when my seniors do that to me!
