I don't have the specifics, but as I recall they were more aggressive (damaging/lethal) techniques.

However, even with what was left in, I will never look at Tai Chi the same way again. Those slow movements at full speed were some effective throws and takedowns.

Now, since Tai Chi is all positioning and frame/structure leverage rather than muscle, it would be harder for most people to pull the techniques off in an adrenaline charged situation.. but that is where years of practice come in, I guess.

I'm also lucky enough where my Sigun is Bow Sim Mark, so my Sifu has very strong roots. He makes crazy stuff look easy.

I wouldnt underestimate ANY martial artist out there that is serious about their training. Regardless of whether its the slowly practiced Taiji or a fast paced boxer, given that both are training for martial application.

Taiji, Bagua, and Hsingyi have some of the craziest stuff I've seen. Also very stand up grappling oriented, which I think is very helpful in a SD situation.