Push hands apps/qin na - a particularly emphasised part of chen style. Be warned it's 48 minutes long. Chen Qinna
What I know about Wu style = 0 but taiji is about principles right? Demo1 Demo2
Nice to see a few apps every now and then, nothing earth shattering here but everyone should be familiar with them and they are mostly workable...
http://www.youtube.com/results?search_query=tai+chi+master+subduing&search=Search
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